Greed is major reason for you to fail as a trader. To eliminate greed from your trading approach, you need to develop a trading plan and trading lifestyle where you plan and follow the rules according to your psychological trading mindset. You should try to practise  mind games and mind strengthening approach for  becoming a good trader and to eliminate emotions from your trading mindset. Try to read psychological books on eliminating the fear and greed types of emotions and then master it slowly step by step.