Should I have bet more on flop and turn? River looked like a busted draw to me, didn't look like a set and just thought the 9 was a miniscule part of his range.

Ignition - $0.25 NL - Holdem - 9 players
Hand converted by PokerTracker 4

MP+2: 111.12 BB (VPIP: 17.65, PFR: 5.88, 3Bet Preflop: 0.00, Hands: 17)
CO: 302.84 BB (VPIP: 35.19, PFR: 18.52, 3Bet Preflop: 0.00, Hands: 56)
BTN: 88.8 BB (VPIP: 23.81, PFR: 0.00, 3Bet Preflop: 0.00, Hands: 21)
SB: 95 BB (VPIP: 22.81, PFR: 5.26, 3Bet Preflop: 3.45, Hands: 57)
BB: 101.4 BB (VPIP: 29.82, PFR: 15.79, 3Bet Preflop: 0.00, Hands: 57)
UTG: 265.32 BB (VPIP: 14.29, PFR: 11.76, 3Bet Preflop: 11.11, Hands: 35)
UTG+1: 97.28 BB (VPIP: 27.50, PFR: 20.00, 3Bet Preflop: 6.25, Hands: 40)
MP: 25.2 BB (VPIP: 21.05, PFR: 5.26, 3Bet Preflop: 0.00, Hands: 19)
Hero (MP+1): 141.6 BB

SB posts SB 0.4 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.4 BB) Hero has Q Q

fold, fold, fold, Hero raises to 3 BB, fold, CO calls 3 BB, fold, fold, fold

Flop: (7.4 BB, 2 players) 7 5 8
Hero bets 3.52 BB, CO calls 3.52 BB

Turn: (14.44 BB, 2 players) 3
Hero bets 6.88 BB, CO calls 6.88 BB

River: (28.2 BB, 2 players) 6
Hero bets 20.12 BB, CO raises to 289.44 BB and is all-in, Hero calls 108.08 BB and is all-in

Commenting before looking at the spoiler so that it doesn't influence my advice: Yeah I think you should be betting more on the flop and turn. It's a wet board and villain is going to have plenty of hands in his range that are drawing here. I don't really see what betting on the river is going to achieve. Apart from maybe 10-10 it's hard to see what worse hand you can get 3 streets of value here by leading out.

As played, I'm insta-dumping to the 5 x Pot shove on the river as from my experience that's pretty much always the nuts.

I also haven't looked at the spoiler.

River card isn't great, so I'd be more likely to check and call a possible bluff catcher.

As played, you should fold his shove.

What is your plan if villain raises turn to 14bb then fires river?

This deep I hate this flop and think you should be checking quite a bit. As soon as this flop comes and being oop our hand is essentially a bluff catcher against any agression. Given that im checking to increase his bluffs.

As played river is a simple fold against someone with even a few brain cells.

I ask my first question because if I'm CO facing a MP raise from a taggish type player (I'm assuming you are not playing 35%+ vpip) I'm raising this week turn bet pretty wide and firing a big river bet. I know this flop doesn't hit your range and your 1/2 pot bet on the turn confirms that you aren't super happy. Sure you have 77, 88, and maybe 55 in your range. But do any of them bet 1/2 pot 1/2 pot on a super wet board? No hands that are scared of action bet like that on this board.

I'm for check calling the flop and probably the turn. I'm c/f this river and I'm 100% folding against a raise as no one bluff raises the turn and even more rarely the river at 25nl.