10/25 Borgata, bluffed out for 6k :( :(

[BNelley24]

10/25 Borgata, some regulars and some crazies. Me = in between.

I have around 5k behind.

I'm dealt AdAc in the SB

UTG limps, 2 other callers. I raise to 175. (maybe not enough for this table, but nonetheless....

BB (50k behind) calls, utg calls.

Flop Qd 7h 7d

I was thinking about check raising flop, but decided to lead out for 400.
- BB folds
- UTG calls. (this has me worried about QQ or a 7 connector obv), maybe KK.

Turn is a brick 8c

(BOARD Qd 7d 7h, 8c)

I bet out 1000, utg shoves for 3k more.

At the time I put the bastard on 6-7 or 8-8. QQ calls.

I folded.

He turns up 99. I can't stop thinking about this hand today. Looking back I should have just check/called the turn and river (unless A came)...Any other advice?