#2 ~ buying more when the market is down—may seem smart, but if the trend continues to move against you, it guarantees liquidation. Discipline is not about reacting quickly,

Instead of throwing all your money into a falling trade, enter with a small amount over time or avoid chasing "discounts." This flattens risk and avoids prolonged drawdowns.

Always account for volatility in your risk plan—set your entries, stop-losses, and position sizes, and stick to them consistently. Let time be your ally, not your enemy.