Hand 1:villain seemed aggressive, but only 10 hands

Hero ($47.75)
SB ($44.50)
BB ($21.25)
UTG ($34.05)
MP ($59.45)
CO ($116.05)

Preflop: Hero is Button with T, 8.
3 folds, Hero raises to $1.5, SB raises to $3.5, 1 fold, Hero calls $2.

Flop: ($7.50) T, 9, 7 (2 players)
SB checks, Hero bets $5, SB calls $5.

Turn: ($17.50) T (2 players)
SB checks, Hero bets $10, SB raises to $36, Hero ???

Hand 2:

Hero ($48.50)
SB ($84.35)
BB ($22.85)
UTG ($31.45)
MP ($60.75)
CO ($117.80)

Preflop: Hero is Button with 5, 6.
UTG calls $0.50, 2 folds, Hero calls $0.50, SB completes, BB checks.

Flop: ($2) 9, Q, 4 (4 players)
SB checks, BB checks, UTG checks, Hero bets $2, SB folds, BB folds, UTG calls $2.

Turn: ($6) A (2 players)
UTG checks, Hero bets $4, UTG calls $4.

River: ($14) 8 (2 players)
UTG bets $4, Hero raises to $25 (puts villain all-in)

pre-flop I'm calling to play my position. Thoughts on river push?

Hand 3:

Hero ($80.20)
Button ($65.65)
SB ($23)
BB ($18.25)
UTG ($57.75)
MP ($122.65)

Preflop: Hero is CO with A, Q.
UTG calls $0.50, 1 fold, Hero raises to $2.5, 1 fold, SB calls $2.25, BB calls $2, UTG calls $2.

Flop: ($10) 6, A, J (4 players)
SB checks, BB bets $4, UTG calls $4, Hero raises to $15, SB folds, BB folds, UTG calls $11.

Turn: ($44) 2 (2 players)
UTG checks, Hero checks.

River: ($44) 5 (2 players)
UTG bets $20, Hero folds.

I wanted to isolate on the flop, turn is scary and there isn't much left behind. River looks like a straight up value bet, I'm thinking AJ, maybe 66 more than the flush. Any thoughts on this hand cuz it seems kinda bad?