Hello all, this is my first post here been a looker for awhile now but I need some input on this hand here. I don't have the hand
history so here is what I have from memory.

Full Tilt Poker 0.25-0.50 NL

I'm on the button and get AKo, UTG raiser to $1.50, 2 others call it gets to me and I raise it to $5.00 wanting
to push people out. Everyone fold execpt the raiser, he calls.

Flop comes 3 K A rainbow. UTG bets $5 I raise to $15 he calls.
Turn comes 9h now there are two hearts out there UTG bets $10, Ok now I'm thinking maybe he has AQ or AJ don't think
he has been on a draw hand the bets he has to call for a draw seem to high but if he is it's going to cost him
to chase it, so I come over the top and shove it all in $35.00, he calls. Well cards get flipped over and I see he has a set of 3's and I ship it over to him.

Now my question is what did I do wrong here, I want to learn from my loses but not sure where my play was so wrong, ok maybe
I had a little bit too much of a hard on for my two pair but not really sure.
Did I play this hand real bad ? Was it just a bad luck hand ?

Thanks, Joe....