Sunday Storm, 3300 remaining, bubble bursts at 2800, averages stack 45k.

600/1200 Ante 120 NL
SB: 35,700 (29.8 bb)
Hero (BB): 45,134 (37.6 bb)
UTG: 46,600 (38.8 bb)
UTG+1: 22,452 (18.7 bb)
MP: 59,776 (49.8 bb)
MP+1: 42,581 (35.5 bb)
MP+2: 38,521 (32.1 bb)
CO: 4,020 (3.4 bb)
BTN: 7,820 (6.5 bb)

9 players post ante of 120, SB posts 600, Hero posts BB 1,200

Pre Flop: (pot: 2,880) Hero has 9 9
UTG raises to 2,400, 3 folds, MP+2 calls 2,400, 2 folds, SB calls 1,800, Hero calls 1,200
Flop: (10,680, 4 players) T 6 9
SB bets 7,200, Hero calls 7,200, UTG calls 7,200, MP+2 calls 7,200
Turn: (39,480, 4 players) J
SB checks, Hero bets 14,400, UTG raises to 36,880 and is all-in, 2 folds, Hero calls 21,014 and is all-in
River: (110,308, 2 players) 2

UTG shows J J: (Three of a Kind, Jacks)
UTG wins 110,308

So many questions...
Is this a cooler, should I get over it?
Should I have played it differently? More aggressive preflop? Or shove on the flop? UTG is 17/10 over 30 hands, pretty solid, did put him on a strong holding.
Or should have played it smallball because of the higher set, straight possibilities?
Any feedback appreciated!

I'd prob just raise the flop here. You'll have more 78/2pair combos plus someone can still stack off hearts+overs imo.

Call pre, raise flop, the board is wet, multiway and the SPR low.

Raise pre but fold to four bet. Lead flop. Probably get raised. Reraise until all in. Fist pump when he turns over JJ. Cry and get another beer on turn.

Coolers happen and they suck.