folding too fast?

Hard to tell if I'm losing value by folding. Thoughts on the following?

Hand 1) I think I'm never ahead here.

Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver)

Button ($17.60)
SB ($4.65)
BB ($20.40)
UTG ($42.40)
UTG+1 ($11.65)
MP1 ($17)
Hero ($24.65)
MP3 ($25)
CO ($25)

Preflop: Hero is MP2 with J, A.
1 fold, UTG+1 calls $0.25, 1 fold, Hero raises to $1.25, CO calls $1, 3 folds, UTG+1 calls $1.

Flop: ($3.85) 4, A, 6 (4 players)
UTG+1 bets $2.8, Hero calls $2.80, CO folds.

Turn: ($9.45) 9 (3 players)
UTG+1 bets $7.6 (All-In), Hero folds.

Final Pot: $1.85

Hand 2) Check-fold or bet this turn?
Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

UTG+1 ($26.30)
MP1 ($14.80)
MP2 ($38.40)
MP3 ($31.45)
CO ($21.10)
Button ($4.65)
Hero ($23.35)
BB ($32.75)
UTG ($25)

Preflop: Hero is SB with , .
2 folds, MP2 calls $0.25, MP3 calls $0.25, 2 folds, Hero raises to $1.35, 2 folds, MP3 calls $1.

Flop: ($3.10) , , (3 players)
Hero bets $2.5, MP3 calls $2.50.

Turn: ($8.10) (3 players)
Hero checks, MP3 bets $3, Hero folds.

hand 3) All bad?
Full Tilt No-Limit Hold'em, $0.25 BB (9 handed) Full-Tilt Converter Tool from FlopTurnRiver.com (Format: FlopTurnRiver Cards)

Button ($10.95)
SB ($9.25)
BB ($4.90)
UTG ($9.25)
UTG+1 ($10.55)
MP1 ($5.90)
MP2 ($5)
Hero ($19.80)
CO ($31)

Preflop: Hero is MP3 with , .
3 folds, Hero raises to $0.85, CO calls $0.85, 1 fold, SB calls $0.75, 1 fold.

Flop: ($2.80) , , (4 players)
SB checks, Hero bets $2.5, CO calls $2.50, SB folds.

Turn: ($7.80) (3 players)
Hero checks, CO bets $2, Hero folds.

Final Pot: $7.80

Final Pot: $8.10

Hand 1: You can't call the flop bet if you're not calling a push on the turn just because of the stack sizes.

Hand 2: It depends, but I imagine that largely at 25nl it's okay to check/fold the turn here.

Hand 3: This is pretty bad. You're okay with him calling $2.50 but not with you calling $2? Take some time to think about this one.

Two problems you have:

1. You don't account for stacks sizes that well. Generally speaking, the shorter your opposition, the lighter you must stack off to him postflop.

2. You respect floating way too much. Floating is the term used for calling a bet (usually cbet) in position with the partial purpose of bluffing the next street after villian checks. You will see this a ton at 25nl.

Also, donk betting is weird. Sometimes it means big strength, sometimes it means semi-strength, and sometimes it means weakness. Typically, the shorter the stack or the more weird the situation, the less likely donking is strength.

You say you play laggy right? Stop this. Tighten the fuck up, and learn how to pwn as a tag. Somebody who plays good lag doesn't present the problems you did. Opening up your game is great, but if you do it without understanding why you'll not progress well.

aye, I still have a lot to learn!
I've been trying to play a lot tighter, stats for the last 2k hands are 16-11-3.7 so I guess that's almost tight enough? running at +4.4BB/100, which definitely isn't pwning, but at least I'm grinding in the right direction

Thanks for the comments, I'm rolled for 50nl now - but feels as though I'm not yet ready. Need to get rid of a few of my silly habits..

Personally I recommend getting to 14/10 or 13/9, and once you figure that out open up. Doesn't matter a whole lot, though, since the difference isn't great.