I actually have written all this down in detail for myself and spent a long time doing it but in a nutshell my number one point was to recognise that the only way to win at poker is to approach it as a long term game, it's a game of probability and you have to give the probability a chance to even itself out by playing the right play over thousands of similiar hands. My number two point was: stay emotionally unattached from every hand, and my number three point was, recognise that every hand is unique and don't let past losses influence you.
Dude this really struck a chord in me Slevin. I still have a problem with being emotionally attached to a hand. Reading this OVER AND OVER might help a lot.