The book that changes everything
What if one book could change everything for you?
Mental strength is the one skill that affects every area of your life. Why?
Because when you learn, step by step, to control your thoughts, you gain control of your emotions. And when you control your emotions, you take back control of your reality.
That’s how you regain direction in your life. You feel calm and focused again, and you start reaching your goals with ease.
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“The happiness of your life depends upon the quality of your thoughts”
- Marcus Aurelius
Available March, 2026. Sign up now and be the first to know when it’s ready to order. No newsletter. Only updates about the book and its release.
Germany’s SPIEGEL bestselling book on Mental Strength
Over 21,000 copies sold in the first 16 months. Not because it promises miracles, but because it gives you a simple, practical way to create real change.
Learn the proven Creator Square Method™ and take back control of your thoughts, your emotions, and your life, quickly and sustainably.
If this feels familiar, you don’t need more advice, you need mental strength.
Stress & overthinking
Your mind won’t shut off. You replay conversations, overanalyze decisions, and feel tense even when nothing is happening. Mental strength means learning how to interrupt that loop, calm your nervous system, and create clarity on command, so you can act instead of spiral.
Insecurity & self-doubt
You second-guess yourself, compare, and keep looking for “proof” before you move. You know what you want, but you don’t fully trust yourself. Mental strength builds inner stability, so your decisions stop depending on mood, other people’s opinions, or the fear of being wrong.
Emotional imbalance & overwhelm
You feel overloaded fast: too many inputs, tasks, and emotions at once. Small triggers can flip your mood, and once you’re overwhelmed, everything gets harder. Mental strength helps you reset, regulate your state, and stay steady under pressure—so you keep moving forward.
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Why is mental strength the game changer you’ve been looking for?
Your reality is shaped by what happens inside your mind.
The way you use your brain determines how you experience your life. The more control you have over your thoughts, the more control you have over your emotions. And that changes everything, because it changes how you show up, decide, and act.
Mental strength isn’t mystical. It’s practical.
It’s learning how to direct your mind so you can build the life you actually want and deserve. Mastering your thoughts from the foundation of real mental strength is one of the most fulfilling skills you can develop.
Because when your inner world improves, your whole life improves.
More than 21,000 copies sold in Germany in the first 16 months have already impacted individuals, families, and working lives.
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What changes for you from the very first page of this book:
You stop waking up with that tight feeling in your chest. Your mind gets quieter, your body relaxes, and you finally feel safe inside yourself again. Less inner noise, fewer spirals, more clarity. Your days feel lighter, and you can enjoy life instead of constantly managing it.
Inner freedom & peace
You stop second-guessing everything you say and do. You trust yourself, hold eye contact, and speak with calm certainty without trying to “perform.” That inner stability makes you magnetic. People feel your presence, take you seriously, and your relationships change because you stop shrinking.
Self-confidence & charisma
You stop starting over every week. No more drifting, doom-scrolling, or losing momentum the moment your mood drops. You stay emotionally steady, lock in, and follow through. You create results, build discipline, and feel like you’re finally the one leading your life again.
Focus & main character energy
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What readers from Germany say about this book:
(Translated from the original German reviews on Amazon.)
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Who is the author?
He is the founder of the “Creators Academy LLC.,” which for years has sustainably changed the lives of people who made the decision to transform their lives.
Jens completed his first coaching certification back in 2009 at age 19 and has since invested about €194,000 (roughly $210,000) in his personal development. Always in search of the most effective ways to help people achieve the results they truly want, in record time.
Alongside running his own fitness studio for five years, he built a national brand as a coach, speaker, and author. His first book, “Your Answer. - Eine Geschichte über die Magie des Lebens” (currently only available in German), reached #1 in the Börsenblatt. His second book, “Mental Strength and Resilience,” not only became a renowned SPIEGEL bestseller in Germany, but sold over 21,000 copies in the first 16 months alone, paving a new path within the personal development scene.
For him, there’s nothing more fulfilling than living his dreams by traveling the world and learning languages, while helping other people turn their own dreams into reality.
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Available March, 2026. Sign up now and be the first to know when it’s ready to order.
No newsletter. Only updates about the book and its release.