millions did i play this hand like a fish?

[hamnegger]

the raise was designed to A) build a pot if i do flop a set while not detracting callers w moderate hands behind me or B) if noone behind me calls i c bet if checked to to try and steal it. is this dumb thinking or ok?

PokerStars No-Limit Hold'em Tourney, Big Blind is t50 (9 handed) internettexasholdem.com

BB (t9075)
UTG (t10275)
UTG+1 (t10950)
MP1 (t9800)
MP2 (t11300)
MP3 (t9275)
CO (t9175)
Button (t9975)
Hero (t10175)

Preflop: Hero is SB with 5[img]/images/graemlins/spade.gif[/img], 5[img]/images/graemlins/club.gif[/img].
<font color="#666666">5 folds</font>, CO calls t50, <font color="#666666">1 fold</font>, <font color="#CC3333">Hero raises to t150</font>, <font color="#666666">1 fold</font>, CO calls t100.

Flop: (t350) 9[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets t180</font>, CO calls t180.

Turn: (t710) 4[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">CO bets t450</font>, Hero folds.

Final Pot: t1160