Quote from pbw:
Here is an interesting quote I stumbled onto. I thought others might also be interested:
The Emotional Problem
Trader's attitude to their potential and existing positions is often a great determinant of success. As every trader knows, the moment a trade is executed, everything is different. That is the point at which it becomes real, no longer digits on a screen and numbers in an account. Now expectation is joined by anticipation. The brain is joined by the heart. Reason is joined by emotion. You exchange detachment for attachment.
When you have an open position and you are looking to close it, you will either have a profit or a loss. The emotions relating to each are quite different. For instance, when sitting on a loss many traders experience hope that the position will turn around because they fear and deny that it may not. It is for you to recognize these emotions and to discard them. Your judgment has to be based on detached reason relating to your analysis of the company.
How you behave once you have an open position is all important. Without clear thinking you could exit too soon or too late. Your key concern with an open position is timing your exit. Of course there are times when you are deciding whether to add to a position, but generally you are concerned with exit. With an open position, you are concerned with closing the position. In order to do that, an open position requires an open mind.
"The key is to be intellectually honest. You have to think of every day as a clean slate. You've got to forget about your loss or how much you paid-you have to treat each day as a completely new day. You have to start everyday with a blank page. Mark to market should be the rule so you start each day afresh. There is no expected profit or loss on the book so you have to start from scratch each morning," says Oppetit.