Stefan Hertweck
Day trader · Trading coach · Founder of FlowTrader AI
I've been trading the futures markets myself since 2018. Since 2019 I've been coaching day traders on the exact mental hurdles that almost cost me my own trading career. Out of that experience grew FlowTrader AI — the AI trading journal I wish I'd had back then.
From emotional chaos into the trading flow
Know that feeling — constantly fighting yourself? You have a clear plan, yet at the decisive moment your emotions take over. Instead of flowing — focused, sharp, decisive — you drift in a sea of uncertainty and stress.
I know it all too well. When I started trading the futures markets in 2018 I had the same battle. Good strategies, bad execution. I knew what to do — and still didn't do it.
In 2019 I started coaching other traders. I kept seeing the same pattern: the problem was never the strategy. It was always the head. A journal alone only scratched the surface — the real goal is a mindset that lets you trade with ease and discipline.
„FlowTrader AI is the solution I wish I'd had — an AI trading journal that doesn't just record, but actually understands and coaches."
From 2018 to today
- 2018
Started as a day trader
Began trading the futures markets independently. First lessons in trading psychology — the hard way.
- 2019
Started as a trading coach
Began working with day traders. Realisation: the problem is almost always the same — psychology, not strategy.
- 2023
First books published
Years of coaching experience put into book form. „The Day Trader as Entrepreneur" and others launch on Amazon.
- 2024
Founded FlowTrader AI
The AI trading journal is born — combining years of coaching experience with modern AI technology.
- 2025
Growth & community
FlowTrader AI grows into the leading AI-powered trading journal platform for German-speaking day traders.
A mentor who knows your trading journal
Years of coaching experience — in every feature of FlowTrader AI.
15 personality questions
You start by answering 15+ questions about your personality and trading behaviour. The more honest you are, the more precise the coaching.
Journal with AI reaction
Your mentor reads your journal entries and responds with targeted, personal nudges — as if really sitting by your side.
Focus of the week
Every week the AI mentor analyses your weak spots and gives you three concrete tasks. A clear mission instead of vague advice.
Chat coaching
Ask the AI mentor questions about your trading directly. It knows every trade from your journal and answers based on your real data.
Grows with you
Unlike a human coach, the AI mentor forgets nothing. The more you log, the more precise and personal the coaching becomes.
Private & secure
Your trades, thoughts and emotions are yours alone. Fully encrypted, never shared with third parties.
How the AI mentor gets to know you
15 questions for your personal coaching profile
Before your AI mentor starts coaching, it asks you 15+ focused questions about your trading personality. What are your biggest weaknesses? How do you react to losses? What drives you?
That honesty matters. The more open you are, the more precise, deep and valuable your mentor's answers and analyses inside your trading journal will be.
Build your personality profile
15+ questions about your trading behaviour, strengths and weaknesses.
Log your first trades
The mentor learns who you are through your trading journal — trade by trade.
Receive your first coaching
After a few entries the mentor already gives personalised nudges.
Choose your focus of the week
Weekly analysis + 3 concrete tasks pulled straight from your journal.
Stefan's knowledge — also in book form
FlowTrader AI gives you the structure in your daily trading journal. Stefan's books build your foundation.
100 Mistakes of a Day Trader
Do you really have to make every mistake yourself? No. The 100 costliest, most common mistakes — with concrete, field-tested fixes for each one.
View on Amazon →
The Head is the Capital
80% of success is psychology — only 20% is strategy. Why your brain is biologically wired to fear losses — and how to rewire it.
View on Amazon →
Head Over Chart
Not a book to read — a training camp. Concrete exercises to build your success archive and learn to steer your nervous system in real time.
View on Amazon →
Day Trading: The Plan Isn't the Problem
You know exactly what to do — yet still don't do it? Your plan isn't broken, your mental operating system is. Tools to disarm the inner saboteur.
View on Amazon →
The Day Trader as Entrepreneur
Stop treating trading like gambling. Build a business plan, manage risk, and structure profits so they give you real freedom.
View on Amazon →* Amazon links contain affiliate tags. The price for you stays the same.
What traders say about Stefan & FlowTrader AI
“I've been using FlowTrader AI for about 3 weeks and I trade much more disciplined now. I wasn't aware that a large part of my CL trades went into the red — since I cut it, my performance has noticeably improved. The more trades I log, the more patterns emerge. I wish I'd found this tool earlier.”
S. H.
Verified user
“Best journal I've used so far. The platform is modern, clean and professionally thought through. You find your way around quickly. Top tool for traders who want to document and analyse everything in detail.”
Mete B.
Verified user
“Game changer. The AI coach doesn't just analyse my trades, it looks deep into my behaviour. Every decision gets reflected, every weakness uncovered. The mindset section caused the biggest shift for me — calm, focus, confidence.”
Dirk L.
Verified user
Start with Stefan as your personal mentor
Stefan's years of coaching experience live inside every feature of FlowTrader AI. Use the AI trading journal he would've wanted himself.
Start for free now →7 days free · Payment only after trial ends · Cancel anytime