That is right,if you noticed you will realized that the reason of most of your trading mistakes is caused by your own self. Your undisciplined self always get in the way to your trading and it's up to you to control yourselves if you want to achieved your goals in your trading. and I agree and I realized that the enemy in this business is myself and feel it to be a successful trader must be able to control themselves and not to the emotions that lead to greed and patience