1. Trading without a plan

Entering positions based on impulse rather than predefined criteria makes it difficult to evaluate what is and isn't working.

2. Ignoring position sizing

Risking too much on a single trade can turn a normal losing streak into a serious account setback. Position sizing should be defined before entry, not adjusted emotionally afterward.

3. Overtrading

Taking excessive trades — often out of boredom or a desire to recover recent losses — increases transaction costs and the chance of low-quality setups.

4. Moving stop-loss levels

Adjusting a stop-loss further away after a trade moves against you undermines the risk management that was defined at entry.

5. Neglecting a trading journal

Without a record of past trades and the reasoning behind them, it is difficult to identify recurring mistakes or refine a strategy over time.