All these hands are from the same session. I'm running pretty aggro, 25/19/4 with a 3bet of 9%. My image reflects this and I can tell people are noticing.

Hand 1)
Villain opens 20% of hands from this position and has a fold to 3bet of 56%.

$2/$4 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG ($364.30)
CO ($838.65)
Hero (BTN) ($411.20)
SB ($802.35)
BB ($1333.43)

Pre-flop: ($6, 5 players) Hero is BTN
UTG calls $4, CO raises to $16, Hero raises to $40, 2 folds, UTG folds, CO calls $24

Flop: ($90, 2 players)
CO checks, Hero checks

Turn: ($90, 2 players)
CO bets $44, Hero folds

Hand 2) Villain is 29/17/2.6 and I've been picking on him a lot this session. His FT3bet is 52%. If you even bet here what cards do you double? If you check, can you see a way to take the pot away later?

$2/$4 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG ($308.20)
CO ($531.40)
SB ($414.70)
BB ($501.60)

Pre-flop: ($6, 5 players) Hero is
1 fold, CO raises to $14, Hero raises to $44, 2 folds, CO calls $30

Flop: ($94, 2 players)
CO checks, Hero ($428.75)?

Hand 3)
Same villain as hand 2

$2/$4 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG ($762.05)
CO ($860.50)
Hero (BTN) ($394.00)
SB ($493.90)
BB ($373.70)

Pre-flop: ($6, 5 players) Hero is BTN
UTG raises to $14, CO calls $14, Hero raises to $52, 2 folds, UTG folds, CO calls $38

Flop: ($124, 2 players)
CO checks, Hero bets $70, CO calls $70

Turn: ($264, 2 players)
CO checks, Hero checks

River: ($264, 2 players)
CO bets $136, Hero folds


Hand 4)
Been picking on this guy a lot also. He's 28/24/5. His FT3bet is 50%.
Bets on turn and river should probably be smaller to make the river bigger but other than that is this ok?

$2/$4 No Limit Holdem
5 players
Converted at weaktight.com

Stacks:
UTG ($98.10)
CO ($1708.60)
Hero ($517.40)
SB ($1725.30)
BB ($1074.25)

Pre-flop: ($6, 5 players) Hero is
1 fold, CO raises to $16, Hero raises to $44, 2 folds, CO calls $28

Flop: ($94, 2 players)
CO checks, Hero bets $62, CO calls $62

Turn: ($218, 2 players)
CO checks, Hero bets $121, CO calls $121

River: ($460, 2 players)
CO checks, Hero goes all-in $290.40,