Flop/turn/river - I think I screwed up big time?

[Lash]

Villain (bb) is unknown other than the fact that he bought in for 100, posted 2 utg previous hand), UTG is loose passive…

Party Poker 10/20 Hold'em (6 max, 5 handed) FTR converter on zerodivide.cx

Preflop: Hero is Button with T[img]/images/graemlins/diamond.gif[/img], K[img]/images/graemlins/diamond.gif[/img].
UTG calls, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises</font>, <font color="#666666">1 fold</font>, BB calls, UTG calls.

Flop: (6.50 SB) 9[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/heart.gif[/img], Q[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(3 players)</font>
BB checks, UTG checks, <font color="#CC3333">Hero bets</font>, <font color="#CC3333">BB raises</font>, UTG folds, <font color="#CC3333">Hero 3-bets</font>, BB calls.

Turn: (6.25 BB) 6[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">BB bets</font>, Hero calls.

River: (8.25 BB) A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
BB checks, Hero checks.

Final Pot: 8.25 BB
<font color="#009B00">Main Pot: 8.25 BB, between BB and Hero.</font>

I intended to check the turn unless I picked up a pair or diamond draw to go along with my hand… Thoughts on this hand?