50NL bottom set - how crazy do you go?

[Ulkis]

Would you be willing to go bust?

PokerStars No-Limit Hold'em, $0.50 BB (8 handed) Poker Stars Converter Tool from FlopTurnRiver.com (Format: 2+2 Forums)

saw flop|<font color="#C00000">saw showdown</font>

SB ($53.70)
BB ($9.25)
UTG ($16.60)
<font color="#C00000">Hero ($90.65)</font>
MP1 ($51.40)
MP2 ($52.05)
<font color="#C00000">CO ($49.25)</font>
Button ($31.20)

Preflop: Hero is UTG+1 with 4[img]/images/graemlins/spade.gif[/img], 4[img]/images/graemlins/heart.gif[/img].
<font color="#666666">1 fold</font>, Hero calls $0.50, <font color="#666666">2 folds</font>, CO calls $0.50, Button calls $0.50, SB completes, BB checks.

Flop: ($2.50) Q[img]/images/graemlins/heart.gif[/img], 4[img]/images/graemlins/diamond.gif[/img], 6[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(5 players)</font>
SB checks, BB checks, <font color="#CC3333">Hero bets $1.5</font>, CO calls $1.50, Button folds, SB folds, BB folds.

Turn: ($5.50) T[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $3</font>, CO calls $3.

River: ($11.50) K[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets $6</font>, <font color="#CC3333">CO raises to $15</font>, Hero ???

I was getting money in at a fairly good rate, perhaps could've bet a bit more on Turn, but high cards popping in &amp; drawy board made me close down a bit, especially River.

Should I bet bigger? what to do with the raise?