10-20 turn and river play

> Six handed 10/20 game.
>
> Opponent: a fish, like trapping and slow play. Don't
> protect blinds too
> much ( fold SB to raise 86%).
>
> My table image is semi tight ( about 30% flop rate)
> but very aggressive.
> Pre-flop raise 17%.
>
> I raised with QQ at middle position and only the
> fish called me from SB.
>
> Flop: 245 rainbow, he check-called.
>
> Turn: 8, still rainbow. fish check-raised me, I
> called, am I right?
>
> River: Q, I raised fish's bet but got re-raised,
> what should I do?