Fold PF (get in cheaply with those small pairs and in position if possible).

Ok now that you made the call, you hit your set. Go for a check raise on this flop. The flop most likely did not help villian, unless villian has JJ. Villian would most likely bet half the pot to a full size of the pot...you come over the top 3x whatever he bets. Hopefully he pushes back.

Other than that, I think you played it sound (just got unlucky).