Each day when you trade in the markets, you are going to war with the other market participants. You are engaging in a battle for capital. As a result, you need to be in peak psychological and physical condition. If you are not in peak condition you will lose money.
The key components of Trading Psychology are:
Approach
Commitment
Discipline
Focus
Patience
Persistence
Flexibility / Adaptability
Personal responsibility
Manage your emotions
The key components of Trading Physiology are:
Nutrition
Exercise
Sleep / Relaxation
Posture