Why most beginners change their rules at the worst possible moment

Most beginners think trading mistakes come mainly from bad analysis. Many of the biggest losses happen after the analysis, when the trader starts changing the rules in the middle of pressure. This usually happens at the worst possible time, when fear is high, confidence is low, and the market is already testing discipline. A beginner often creates a plan in a calm moment but abandons it in a stressful one. That is why the real problem is often not the strategy itself, but the inability to follow it when emotions take control.