Hero (BTN): 125.75 BB
SB: 78.31 BB (VPIP: 15.38, PFR: 15.38, 3Bet Preflop: 16.67, Hands: 14)
BB: 152.94 BB (VPIP: 31.25, PFR: 25.00, 3Bet Preflop: 0.00, Hands: 16)
UTG: 138.56 BB (VPIP: 10.06, PFR: 6.15, 3Bet Preflop: 1.47, Hands: 183)
MP: 255.56 BB (VPIP: 40.48, PFR: 30.95, 3Bet Preflop: 11.54, Hands: 86)
CO: 204.13 BB (VPIP: 30.56, PFR: 22.22, 3Bet Preflop: 6.06, Hands: 73)

SB posts SB 0.5 BB, BB posts BB 1 BB

Pre Flop: (pot: 1.5 BB) Hero has T 9

fold, fold, CO raises to 2.5 BB, Hero calls 2.5 BB, fold, fold

Flop: (6.5 BB, 2 players) Q J 4
CO bets 2.75 BB, Hero calls 2.75 BB

Turn: (12 BB, 2 players) 7
CO bets 7 BB, Hero raises to 23.81 BB, CO calls 16.81 BB

River: (59.63 BB, 2 players) 8
CO checks, Hero bets 96.69 BB and is all-in, fold

Q1: How to extract max Value?
A1: I think I should raise this <1/2Pot CBet on the flop, turn I think was ok, on the river I should not overbet shove and just bet standard 2/3 Pot to get a call from K If he have A he would rasie himself on the river.

I like raising flops with these smaller flopped flushes , river I don't think you can do anything about tbh very hard to get called unless he has a flush

Raising flop depends on history at that moment, if you have been floating against him, would be better for you to just call and try do ''float'' again but in this case having a hand...

Your bet size OTR seems like you have it more that you dont, I like a pot size bet, it reps more like we want him to fold instead of holdinga big hand.