This hand was actually played in a deep run in a small stake MTT(4.40Big at PS), BUT my question is how to play this hand in for example WSOP Main Event Live which I´m gonna play next year? I became afraid here after postflop reraise and reraise(all in) that I was up against higher set. No reads on the players.

SB: 35.5 BB
BB: 65.05 BB
UTG: 73.26 BB
UTG+1: 23.8 BB
Hero (MP): 44.54 BB
MP+1: 78.34 BB
MP+2: 68.75 BB
CO: 21.8 BB
BTN: 27.74 BB

Pre Flop: (pot: 2.4 BB) Hero has 3c 3s
fold, fold, Hero raises to 2 BB, fold, MP+2 calls 2 BB, fold, BTN calls 2 BB, SB calls 1.5 BB, fold

Flop : (9.9 BB, 4 players) 3d 6s 8s
SB checks, Hero bets 3.3 BB, MP+2 calls 3.3 BB, fold, SB raises to 8 BB, Hero calls 4.7 BB, MP+2 raises to 66.65 BB and is all-in, SB calls 25.4 BB and is all-in, Hero calls 34.44 BB and is all-in

Turn : (128.18 BB, 3 players) 8h

River : (128.18 BB, 3 players) Qs

Thanks!