Definition of "playing well after the flop"?

SSHE and Getting Started in Hold'em are the books I'm mainly reading now. Some situations like playing from the blinds, Ed says you can play a number of not usual starting hands IF you play well after the flop. I know this is a complex subject and may or does involve counting outs to draws and deciding when you have enough to take one off, as he says, and continue on. Pot size he emphasizes is all important to be aware of and sometimes I get "tied to the pot" because it's large (just raised pre-flop is enough, he states) and have trouble folding when it looks unfavorable for me even though the pot is big.
I have poker tracker and 107,000 hands in 10 months. I started play money (3weeks) and then went right to .25/50 at Pokerstars but feared losing my bankroll on the downswings--my ego or psychology or confidence still gets shaken when I have those swings--I would like to be a little more detached about the outcomes of my playing and just play to learn and get experience but I get pretty excited about the wins.
So to protect my bankroll I have been playing .05/.10 tables--usually 4 or three depending on what I can handle or how tired I am. I went to .10/.20 when Stars started that recently and it was easier to make the jump to .25 from .05 that way.
I must have leaks because my play is so inconsistent--I'm a solid winner many times but cancel that out with bad or poor play on other tables simultaneously. Maybe some of my problem is patience with the selection of good preflop starting hands, controlling my tilt when I make mistakes that I should know better not to make (mainly involves confidence in myself and my play), and I'm confused about folding--Ed Miller said in a recent post I read that 2+2'ers fold too much and that actually helped my game tremendously so what are some points that relate to playing well after the flop that when I see that phrase I'd know what to work on next?
Thanks.