TPTK in a huge pot, how to protect my hand?

[karitek]

only a couple orbits in, so no real reads. neither villan has has 3-bet or capped pre-flop since I sat down.

MP1 has been being LAG-y - seeing 70% of flops, and raising about 10% or so, AF of 2.

CO has been LAG-y as well, but not as loose (seeing 40% of flops), AF of around 1. He's shortstacked.

I really feel like i misplayed this handon every street. Should I have folded pre-flop when it's 2 back to me? Since I didn't, what is my plan from then on? The pot is so big and my position sucks, that I am having a hard time figuring out how to protect my hand. Help.

Party Poker .50/1 (10 handed) converter

Preflop: Hero is UTG+2 with T[img]/images/graemlins/club.gif[/img], A[img]/images/graemlins/club.gif[/img].
<font color="#666666">2 folds</font>, hero raises, 1 fold, MP2 reraises, 1 fold, CO caps, 2 folds, BB calls, hero calls.

Flop: T[img]/images/graemlins/spade.gif[/img], 6[img]/images/graemlins/club.gif[/img], 8[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(16.5sb, 4 players)</font>
BB checks, hero bets, MP1 raises, CO calls 2.25 (All-In), BB calls, hero calls.


Turn: 3[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(11.5 BB, 4 players, 1 all-in)</font>
BB checks, Hero bets, MP1 calls, BB folds.

River: 2[img]/images/graemlins/spade.gif[/img] <font color="#0000FF">(13.5bb, 3 players, 1 all-in)</font>

Hero bets, MP1 raises, Hero calls.