Common Journaling Mistakes To Avoid

Keeping a trading journal is only useful if it's kept accurately and consistently — a journal with gaps or selective entries can be worse than no journal at all, because it creates false confidence in incomplete data.

One common mistake is only logging trades that went well, or skipping entries after a frustrating loss. This selection bias means the journal no longer reflects reality, and any conclusions drawn from it will be skewed toward a rosier picture than actual performance.

• Inconsistent logging: journaling sporadically, especially skipping losing or embarrassing trades
• Recording outcomes without reasoning: noting only profit or loss without the "why" behind the trade, which makes later review meaningless
• Never reviewing the journal: writing entries but never scheduling time to actually read back through them and look for patterns
• Changing the strategy too fast: reacting to a handful of losses by overhauling the plan, rather than reviewing a large enough sample