First hand of my first live tourney and I am crippled please help

[rockythecat99]

K blinds If I remember correctly are 50/100 and starting stacks are 4k. Very first hand of tourney. I am CO with AKo
Utg+1 limps in , Utg+2 limps, folded over to me. I make it 300 to go. Blinds fold , Utg+1 fold , Utg+2 folds. Now I think he has a small pair so flop comes QQ8 rainbow. Villain checks hero makes standard continuation bet of about half the pot 350. Villain calls. Turn comes 2 check check, river comes Ace giving me top two pair. Villain bets 2000. Now I for sure think he is trying to steal and I call he shows me KQo. Please help thinking it over I think my pf raise was too small with two limpers already in and my river call was way too loose but I guess being my first live tourney hand I was bound to make mistakes. How should i have played this?