Monster pot, TPTK

[Obliky]

This is about my 2nd hand on the table, but i sat down at the table as the average VP$IP is ~70. Therefore im assuming villians are loose and probably passive.

PokerStars 0.50/1.00 Hold'em (6 handed) FTR converter on zerodivide.cx

Preflop: Hero is Button with Q[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/heart.gif[/img].
UTG calls, MP calls, CO calls, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">SB 3-bets</font>, <font color="#666666">1 fold</font>, UTG calls, MP calls, CO calls, <font color="#CC3333">Hero caps</font>, SB calls, UTG calls, MP calls, CO calls.

Flop: (21 SB) 6[img]/images/graemlins/heart.gif[/img], 5[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(5 players)</font>
<font color="#CC3333">SB bets</font>, UTG folds, MP calls, CO calls, <font color="#CC3333">Hero raises</font>, <font color="#CC3333">SB 3-bets</font>, MP calls, CO calls, Hero calls.

Turn: (16.50 BB) T[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, MP calls, CO calls, Hero calls.

River: (20.50 BB) 5[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(4 players)</font>
<font color="#CC3333">SB bets</font>, MP folds, CO calls, Hero calls.

Final Pot: 23.50 BB

I capped preflop due to the dead money being put in by UTG, MP and CO. My standard play here is to call the preflop 3-bet.

I wasnt sure what to do postflop as my position relative to the flop bettor was [censored], therefore i couldnt see any way to protect my hand.
Would it have been better to call the flop bet and raise the turn, hoping the SB 3-bets?