I really like this site but I noticed in the strategy section there is very little on post-flop play, which I where I feel I lose my money. I understand pot odds and pricing people out of draws and stuff. I'm probably too attached to TPTK, but how do you tell when this is beat, especially by a two pair and especially more so if they don't reraise you? I just got Poker Tracker and I wasn't able to import all my recent hands because I have switched sites a couple of times, but my stats for the 1200 hands (which I know isn't very much) I do have are:

VP$IP: 20.37%
W$WSF: 37.68%
BB/100: -10.81 (sounds bad, but is only $25)
WTSD: 21.83%
W$ASD: 43.55 (This is the one that concerns me)
PFR: 8.10%