Kosta Ouzas argues that trading improvement requires deliberate, ongoing review: keeping detailed logs of trades (including reasons and emotional state), regularly reviewing them, and encoding learnings into an algorithm. Professional traders review every trade to avoid repeating mistakes; amateurs skip review and therefore repeat errors. The process is slow and uncomfortable but essential for turning losses into lessons.
Chapters
Improvement in trading doesn't happen by accident. It's the result of deliberate review. Most traders don't keep a detailed log of their trades, their reasoning, and their emotional state. Without this, they're blind to their own patterns. Our algorithm is constantly logging data. We're reviewing performance and adapting. And traders should also do the same. This means recording not just the numbers, but why you entered, why you exited, and what you were thinking at the time. And we end up engineering these into the algorithm itself. Over weeks and months, these notes reveal where discipline slips, where rules get bent, which setups actually deliver consistent returns. It's not glamorous. It's slow, and sometimes uncomfortable. Nobody likes confronting their mistakes in writing. But review turns losses into lessons instead of repeat offenses. Professionals review every trade because they know that every error they identify is one they don't have to pay for. Again, the amateurs skip review because they think, I already know what I did wrong. The problem is, if you really knew, you wouldn't be doing it again. Review is not a choice. A weapon. And in trading, the better you review the process, the sharper that weapon becomes over time.