Ok for all of those whos having the same problem ive had for some time now, which is calling with good cards, even though youre most positive your beat, heres a tip that has helped me reduce my losses greatly.

First, remind yourself of the last few times youve done those stupid calls. Bring up a fresh memory where u cursed yourself after you lost your stack because you make a truly stupid call.

Secondly, take a look at the table. If your stack is allready too low then the only reasonable thing may be to call, but most of the time youll find that the money you still have if you fold IS worth protecting. It may be 20 bucks in a ringgame, or a decent stack in a sng/mtt where a double up at another time may bring you right back into the action for FT.

THird, with the memory still fresh in your mind, and your orientation of the table a little clearer, ask yourself what you would prefer.
Busting out now and going to bed in a bad mood while the whole world falls apart around you....
OR stay in the game for a while longer and thus still be able to win some (or even ALOT) of money.

If you prefer the latter, then just FOLD. Its not hard to do. Even though you might not think so, you WILL feel alot better busting out to a runner runner fish, then busting because of your own stupid play.

Im not gonna claim this will work for anyone and everyone, but it sure has helped me alot. I may not win alot more, but i lose a helluva lot less, and ive relized that the bad moodswings i suffered due to bad pokersessions has more or less gone away completely. I figure this is just because when i do lose its not because i did something really stupid, but because i was unlucky.