checkraised on river uncomfortable spot

[JaBlue]

6-handed

I have 500 villain has 500. I'm multitabling and he hasn't done anything special, so no read.

He's in the CO and opens for 12. I call on the button with 5 [img]/images/graemlins/diamond.gif[/img] 7 [img]/images/graemlins/diamond.gif[/img]. Blinds fold.

30$ Flop: Q[img]/images/graemlins/heart.gif[/img]8[img]/images/graemlins/heart.gif[/img]9 [img]/images/graemlins/club.gif[/img]

He bets 20$. I call. I called planning to either take it away on the turn or suckout.

70$ turn: Q[img]/images/graemlins/heart.gif[/img]8[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/club.gif[/img] and the 6[img]/images/graemlins/spade.gif[/img]
He checks and calls 50$

170$ river: Q[img]/images/graemlins/heart.gif[/img]8[img]/images/graemlins/heart.gif[/img]9[img]/images/graemlins/club.gif[/img]6[img]/images/graemlins/spade.gif[/img] and the 2[img]/images/graemlins/heart.gif[/img]
Villain checks hero bets 120, villain goes all in for 300$ more the pot is 590 with 300 to call.

I think I should have just folded the flop but I try to win too many pots.

All comments welcome, especially how to play the river