I got lucky, but did I play badly?

[cosmo kramer]

5/10 6-max at Party. Folded to me on the button with A5o, I raise. SB 3-bets, BB coldcalls, I call. 3 to the flop-

J [img]/images/graemlins/club.gif[/img]10 [img]/images/graemlins/club.gif[/img]5 [img]/images/graemlins/heart.gif[/img]

SB bets, BB calls, I raise. SB 3-bets, BB folds, I call. 3 to the turn:

5 [img]/images/graemlins/spade.gif[/img]

SB bets, I raise, he calls. Heads up on the river:

A [img]/images/graemlins/club.gif[/img].
SB checks and calls.

How bad was this play. I'll post my thoughts later.