Become the Elite Operator Your Business Needs You To Be
Unlock the Elite Entrepreneur Within
Our neuroscience‑based protocol that rewires your brain, triples your productivity, and cuts procrastination and burnout so you scale faster without more hours.
Trusted by Founders, CEOs & Executives of industry-leading companies across the world
Selfmastered is a Performance Institute for Ambitious Founders & CEOs
We use data‑driven, neuroscience‑based protocols to rewire how you operate so you can execute at your peak consistently and scale without burning out or adding more hours.
You Didn’t Get This Far To Still Be Your Own Bottleneck
You know exactly what to do to scale, but you're not doing it consistently. You’ve built a real business. You’re smart, experienced, and everyone around you thinks you’re “killing it.” But when you’re honest, you know you’re operating at maybe 30–40% of what you’re capable of.
You end too many days knowing you avoided the hard, high‑leverage work. You got sucked into Slack, email, fires, and easy tasks… again. You go to bed frustrated, telling yourself “tomorrow will be different,” but it rarely is.
You’ve tried books, podcasts, dopamine detoxes, productivity apps, masterminds, even therapy. They give you a short spike… then you slide back into the same patterns.
This isn’t a tactics problem, it is a performance problem, rooted in the biological fact that your didn't evolve to help you thrive, but survive in the savanna.
Until you upgrade how your brain runs your days, your business will stay capped at your current level of execution.
Little clarity or sense of purpose
You don't know what to prioritize and why.
Progress is difficult, growth is slow
Too much friction holding you back.
Ineffective & overwhelmed
You get stuck & distracted easily.
Inconsistent & undisciplined
You know what to do, but can't do it consistently.
Custom‑fit to your business and life
We diagnose your real bottlenecks and build a protocol around them
Built on hard science, not random hacks
Level up with evidence-based protocols that just work
Run by data, not vibes
Track your progress with specific KPIs.
Supported by an elite community
You operate alongside serious founders who are done playing small.
Upgrade Your Operating System
Most “performance” advice is just motivational foreplay: more hype, more quotes, more tactics to remember but not use.
Selfmastered is different. We treat execution like engineering, not inspiration.
Using neuroscience, performance psychology, and behavioral science, we build a 16‑week protocol that rewires how you operate: what you focus on, how you decide, and how you respond to resistance in the moment.
You install daily systems, constraints, and feedback loops with qualified coaches who personalize everything to your unique situation. Your behavior gets measured, not guessed. Your brain learns that doing the right work is the default, not the exception. That’s why it sticks. You don’t leave with more ideas. You leave as a different operator.
Reach your next level in life & business
When founders install the Selfmastered protocol, the changes appear quickly.
Within days, you stop wasting hours to distraction and avoidance.
Within weeks, procrastination, self‑doubt, and overwhelm episodes drop by around 90%. Your calendar fills with deep, meaningful work instead of noise.
Over 400 founders have used our protocol to become the person they always believed they could be: clear, focused, calm under pressure, and relentlessly consistent.
Once they start operating like that, the business finally responds. For founders under $1M, doubling revenue in about 4 months becomes a by‑product of finally executing at the level they were always capable of.
Become the most effective you can be
You get proficient at consistently executing the high-leverage tasks
Buy back 10h-30h of your time
Those hours move from firefighting into deep, strategic execution
Master your mental game
Our clients report a 90% reduction of self-doubt, procrastination and burnout within 16 weeks of working together
Hit major revenue goals
The revenue levels you’ve circled for years become normal, because your execution finally matches your potential
"As soon as I updated my mental defaults, everything changed"
Hanson Cheng
Founder of ContentSprout.ai & LinkJuice.Agency
"It's unbelievable how much I've changed in the past 12 weeks"
Philipp Quaderer
CEO of SPM AG
"Joining Selfmastered has been a life-changing experience"
Matthew Burns
Senior Manager at Monday.com & Founder of Empowered Manager
"I unlocked the self-belief I needed to keep pushing"
Zachary Weik
Founder & CEO of Dealflix.co
"Now I truly understand there are no limits for me"
Francisco Hernández Parga
Founder & CEO of Menhir.ai
"I execute 3 deep work sessions now versus 0 before"
Carlos Charre
Growth Partner at TheFitBeard.com
"I got back my clarity, motivation and drive to win big"
Lars Parchold
Founder of PascholdMarketing.de
"I'm less stressed, calmer, and now focus 4-6 hours daily, up from 2 hours previously"
Adam Coleman
Founder of Ajenzy Media
"I became a much more optimized version of myself and could hit 2x ROI within just 2 weeks"
Lara Acosta
Founder of LA Digital
"Collecting daily feedback has changed the game for me"
Marlon Peralta
Key Account Manager at Dialectic
How Selfmastered Works
1
360º Evaluation
Upon joining Selfmastered, you complete a comprehensive performance diagnostic that identifies the specific execution bottlenecks preventing you from scaling.
We analyze your entire performance spectrum across five domains:
- Mind: Personality traits, behavioral patterns, decision-making defaults
- Brain: Cognitive capacity, attention management, self-awareness
- Life: Physical health, relationships, personal development
- Business: Product, marketing, sales, operations execution
- Time: Task prioritization, efficiency gaps, distraction patterns
You receive a Performance Evaluation that shows exactly why you're stuck and which constraints we'll systematically address over 16 weeks of training.
No more guessing. You see the real gap between the operator you are and the operator your business needs.
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2
Guided transformation
Once we know exactly where you’re leaking execution, we don’t hand you “tips.” We build and install a protocol.
Using your 360° Evaluation, we design a research‑backed curriculum that systematically upgrades how you operate as a founder:
In this phase, we’ll precisely level up your:
- Spiritual Performance (Purpose, intrinsic motivation, core values, consciousness)
- Mental Performance (Cognition, beliefs, behaviors, and emotional management, etc..)
- Physical Performance (Stress management, recovery, burnout-proofing), etc.
- Strategic Performance (Prioritization, leverage, systems)
- Executive Performance (Speed, feedback, flow states)
You get 1‑on‑1 coaching plus targeted group sessions where we install daily protocols, constraints, and feedback loops.
The goal of this phase is simple: take the version of you that shows up on your best days and make that your new baseline, not a once‑in‑a‑while peak.
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3
Achievement
The culmination of your journey is to validate your transformation.Together, we set a concrete, uncomfortable goal that would’ve been impossible with your old operating system, then we use your new one to hit it.
Over the quarter we:
- Audit your execution weekly.
- Review wins, losses, and self‑sabotage patterns.
- Adjust your protocol so you get better week after week
Typical goals we’ve helped founders hit in a single cycle:
- Launch a new offer that drives $500,000+ in revenue.
- Multiply revenue by 2x, 3x, 4x… up to 12x in extreme cases.
- Win nationwide business awards.
- Sell a business for 8 figures.
- Build a team and systems that finally remove them from day‑to‑day chaos.
- And many more
By the end, it’s not theory. You have hard evidence that you’re operating like a different founder, and results your old self simply could not have produced.
Ready to Level Up?
Our neuroscience-based protocol will help you break through and scale fast without burning out or adding more hours.
Hey, I'm León Castillo
I’m an entrepreneur, investor in 40+ startups, and university professor obsessed with one question: Why do so many smart, driven founders still fail to execute at the level their businesses demand?
Six years ago I founded Selfmastered after seeing too many entrepreneurs buy more courses and coaching, yet end most days knowing they still didn’t do the work that actually moves the needle.
Since then, we’ve worked with hundreds of 6–9 figure founders, using neuroscience‑based performance protocols originally reserved for Fortune500 CEOs, elite athletes and operators, and tailored them to the reality of running a high‑growth company.
Selfmastered is the antidote to the 1-sided, mostly ineffective executive performance advice most entrepreneurs have to rely on.
We exist to do one thing: Turn you into the operator your business needs you to be, with an execution system that is deep, durable, and measurable, not another 30‑day motivation spike that fades when life gets hard.
Frequently Asked Questions
Find answers to common questions about Selfmastered.
Selfmastered is the world's foremost performance institute for founders. We research, compile & teach the latest advancements in performance science and combine them with the most effective executive performance frameworks to create powerful transformations. We use science & data to optimize key aspects of your psychology, physiology & executive function to help you save time, make better decisions, and scale your business faster without stress, overwhelm, or burnout. We also keep you accountable for the goals we set together.
As far as we could tell, there is no science-backed & data-driven performance institute that teaches entrepreneurs the skills and frameworks they need to unlock sustained peak performance and win in business. Selfmastered fills that void.
If you have never trained your ability to focus, execute & perform, you need it. You’re likely leaving massive potential on the table.
Even if you identify as a high-performer already (most of our clients do), we guarantee you haven't researched, experimented, and compiled the amount of data about self-mastery and peak performance that we have.
If you are not operating at a 10/10, you need this.
Everything we do is rooted in science. Our methodology is based on the latest research on executive performance optimization: we leverage frameworks from neuroscience, performance psychology & behavioral science to unlock your full potential in business. Everything we say, teach or train you with is backed by scientific evidence and tracked using data-driven tools.
Selfmastered is not a course, but a combination of online training, 1:1 coaching, group coaching, mastermind community and proprietary tools. While the average completion rate of an online course is 1%, Selfmastered has a 87% completion rate.
Our most successful clients devote 4 hours/week. This said the speed of learning and transformation will depend on the intensity of your commitment to the program. The more you work through the modules, the better results you'll get.
Within 24h of using our protocol you'll start saving time, some clients report saving 20 hours of their time after just 7 days in the program; others have 2X'ed their business in just a couple of weeks. We suggest you commit to the process thoroughly and get results ASAP.
The purpose is to learn more about you and your current situation and ensure it’s a good fit for both sides. What makes Selfmastered work so well, is that everyone in the community is an inspiring, mission-driven leader. The application process allows us to curate this kind of community.
We customize our offer to your specific needs. The final price depends on your selected payment schedule, and the 1:1 commitment you request, among other factors.
Yes, we guarantee Selfmastered is the best investment you will ever make in yourself.
Unlock the Elite Entrepreneur Within
Get the training, tools & accountability you need to exceed even your wildest expectations. We'll help you unlock peak performance in under 4h/week.