Most trading mistakes aren't analysis mistakes. They're decisions made in the heat of the moment. Here's why they happen and the practical routines traders use to take emotion out of the process.
Most trading mistakes are decisions made in the moment: chasing, revenge trading, moving a stop, sizing up after a winning run. They come from documented biases such as loss aversion and the disposition effect, so the fix is structural: a written plan, fixed risk, a daily loss limit and a cool-off rule.

Losses feel worse than equal gains feel good, so people act to avoid the pain of a realised loss. Trading also delivers random, intermittent rewards, which makes it easy to over-trade. Knowing this doesn't switch it off. Systems do.
These aren't trading-guru theories; they're documented findings:
| Effect | What was found | Source |
|---|---|---|
| Loss aversion | A loss is felt roughly twice as strongly as an equivalent gain, so people take risks to avoid realising one. | Kahneman & Tversky, Prospect Theory (Econometrica, 1979) |
| The disposition effect | Investors sell winners too early and hold losers too long — the exact opposite of cutting losses and letting winners run. | Odean, Are Investors Reluctant to Realize Their Losses? (Journal of Finance, 1998) |
| Overtrading | The most active traders underperformed the least active ones after costs, in a study of thousands of retail accounts. | Barber & Odean, Trading Is Hazardous to Your Wealth (Journal of Finance, 2000) |
In other words, the behaviours that cost traders money are normal human ones, measured repeatedly in large samples. That's why the fix is structural (rules, limits, a routine) rather than "trying harder to be disciplined".
Answer these as you actually behaved last month, not as you intend to behave. Nothing is sent anywhere; it's scored in your browser.

Chart Bound is a free browser game that drills exactly this on real historical charts: read the candles, make the call, see instantly if you were right.
Play free, no signup →Any single trade can lose even when it was a good decision. Grade each trade on whether you followed your rules, not on profit. Over time, good process produces the results; chasing results destroys the process.
Hesitation usually comes from not trusting your read. The cure is volume: seeing enough examples that a setup becomes familiar. That's something you can practise for free, away from real money.
Pre-commit to rules: a written plan, fixed risk, stops placed at entry and a daily loss limit. Rules reduce the number of in-the-moment decisions.
Taking impulsive trades to win back a recent loss, often with bigger size and no valid setup.
Limit yourself to your defined setups and a maximum number of trades per day, and journal every trade to see the pattern.
Often after a losing streak, or because you don't fully trust the setup yet. More practice repetitions and smaller size usually help.

Chart Bound is a free browser game that drills exactly this on real historical charts: read the candles, make the call, see instantly if you were right.
Play free, no signup →