After a loss, "revenge trading" — sizing up on emotion — is the most classic and destructive pattern for individual traders blowing accounts.
Probabilistic Disadvantage
Due to "loss aversion," people accept higher risk to recover a single loss. However, raising risk doesn't change your edge (win-rate × RR); it only increases single-trade variance. Expected value stays the same, but drawdown risk grows—a highly unfavorable probabilistic move. Pros typically shrink size or step away after a losing streak.
Implementing a Hard Brake
Set a daily loss limit. If hit, mandatory shutdown for the day. Close the screen and calmly rebuild your rules for tomorrow.