ABC question about a hand

[Buccaneer]

Every one is new to this game. I am embarrased to post this but what exactly is the ABC play here and why please.

I raised pre flop, called the flop, should I have played it different?

How about the turn? I have nothing but an over card and the board is beating me.

Preflop: Hero is CO with A[img]/images/graemlins/club.gif[/img], J[img]/images/graemlins/heart.gif[/img].
<font color="#666666">3 folds</font>, MP2 calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">2 folds</font>, BB calls, MP2 calls.

Flop: (6.50 SB) Q[img]/images/graemlins/spade.gif[/img], 9[img]/images/graemlins/club.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets</font>, MP2 calls, Hero calls.

Turn: (4.75 BB) 7[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">BB bets</font>, MP2 folds, Hero ?????