I find lately I play fairly well through a session but i'll get a big hand and i'll lose my focus on reading the situation and end up lousing a stack on something that in retrospect seems obvious. Example: Playing 1-3 for a while i have just shy of 300 (289-294?) I have KdKc UTG. I rase standard 12 folds around to BB who makes it 30. This guy is a little more skilled than an average player so i decide to smooth call to coax more value on the flop. Flop is 5d9d9s he bets 35. I think with the flush draw its time so i make it 100. He goes all in. I tank but make the call he had AA, with a dry runout. In retrospect the way that all played out his range was beating me.