Fear is what is usually more harmful than greed because when you are afraid you can not act and when you can not act you will not be able to make any profit at all. Greed is like have the will to do something but you go on the extra mile that might also be harmful. I will prefer to be greedy than to be fearful because when I am greedy and it pays off, then I will make a lot more money. Though I will not be greedy in my trading again.