FX: TraderFeed: Top Ten Reasons Traders Lose Their Discipline

1) Trading a time frame, style, or market that does not match your talents, skills, risk tolerance, and personality.

2) Not having a clearly defined trading plan/strategy in the first place;
3) Trading positions that are excessive for the account size, created exaggerated P/L swings and emotional reactions;

4) Situational performance pressures, such as trading slumps and increased personal expenses, that change how traders trade (putting P/L ahead of making good trades);

5) Personality traits that lead to impulsivity n low frustration tolerance in stressful situations
6) Loss of confidence in one's trading plan/strategy because it has not been adequately tested n battle-tested

7) Unwillingness to accept losses, leading to alterations of trade plans after the trade has gone into the red;
Overconfidence follows a string of successes;

9) Fatigue and mental overload create a loss of concentration;
10) Environmental distractions and boredom cause a lack of focus;