Axs in SB

[Stuck]

Live 15/30 game. Ad5d in SB. Fish limps in early position, OK player raises in middle position. 2 cold callers (neither seem good players), I call, BB calls, we take the flop 6 handed.

Flop: Q x x with two diamonds

check to the raiser, who bets, two callers, and I raise. It was intended to be a raise for value, but I've been screwing this up recently and tonight was no exception. 1 fold, preflop raiser three-bets, everyone else folds and I call.

Turn is an A.

Check-bet-call.

River is a 5.

My play?