99 bust me please

Poker Stars, $0.01/$0.02 No Limit Hold'em Cash, 6 Players
Poker Tools Powered By Holdem Manager - The Ultimate Poker Software Suite.

Hero (SB): $2.47 (123.5 bb)
BB: $1.88 (94 bb)
UTG: $2.11 (105.5 bb)
MP: $3.23 (161.5 bb)
CO: $2.11 (105.5 bb)
BTN: $2 (100 bb)

Preflop: Hero is SB with 9 9
2 folds, CO raises to $0.06, BTN folds, Hero calls $0.05, BB calls $0.04

Flop: ($0.18) 6 3 9 (3 players)
Hero bets $0.12, BB calls $0.12, CO calls $0.12

Turn: ($0.54) 2 (3 players)
Hero bets $0.35, BB calls $0.35, CO calls $0.35

River: ($1.59) 7 (3 players)
Hero bets $1.94, BB calls $1.35, CO folds

Results:

CO player is 1.7k hands on him pretty super nit 11/7 WTSD 26

BB player is almost unknown with only 7 hands playing 43/0 just nonsense stats for that many hands

so here its a pretty standard set mining situation pre vs a super nitty guy

thankfully BB decides to make the pot a little bit bigger with his call

So once I get to the flop and make my hands all I'm looking for is fast play on such a board with an unknown player and a nitty that folds 58% to cbets

So none of the folded, i get on the turn which gives me a pretty almost blank card

that deuce scares me vs 45 but not against anything else

so I keep cbetting hoping to get raised all in so I could shove it all

but I get called and what happens here is pretty sick, that 7 is the kind of card I was not looking for.

So here I'm pretty committed to the pot even tough I should've probably cbet 1/2 pot / folded

Hands that are calling my all in are 2 pairs which is almost impossible, as 2 pair I see only a weak 67, then all Kind of sets like 22s and 77s and maybe TTs and JJs, I dont put 66s and 33s because I'm assuming he would have raised me on flop with those hands and that scary board.

And obviously T8 58 and 45

so here my equity comes out as

Board: 9♥6♣3♣ 2♦ 7♦
       Equity     Win  Pareggio
MP2    64.00%  64.00%     0.00% { JJ-TT, 77, 22, T8s, 85s, 76s, 54s, T8o, 85o, 76o, 54o }
MP3    36.00%  36.00%     0.00% { 99 }

What do you guys do in my situation? is that river situation an easy bet 1/2 pot /fold to his raise?