Newbie with pocket 5's. How to play?

[BoxLiquid]

Was folding preflop the best play? How to play this hand on flop? Thanks all. I don't have much info on villain. I'm wondering if on the flop I am supposed to auto-bet even though there's overcards, since I was preflop raiser. Can someone tell me what would go on in your head When you're in the position i'm in??

Party Poker 20.00/40.00 Hold'em <font color="#0000FF">(10 handed)</font> link

Preflop: Hero is MP2 with 5[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/club.gif[/img].
<font color="#666666">3 folds</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 folds</font>, CO calls, <font color="#666666">3 folds</font>.

Flop: (5.50 SB) T[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/spade.gif[/img], 7[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, CO calls.

Turn: (3.75 BB) 8[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets</font>