100NL, Two difficult hands in shitty spots

hand 1: villain is 11/8/3 over 600 hands. Is my passive line profitable vs this guy? river decision ?
PokerStars No-Limit Hold'em, $1.00 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

Hero (UTG) ($98.50)
MP1 ($84.75)
MP2 ($97.50)
CO ($118.80)
Button ($52.05)
SB ($54)
BB ($278.85)

Preflop: Hero is UTG with A, A
Hero raises to $4, 2 folds, CO calls $4, 3 folds

Flop: ($9.50) Q, 7, 9 (2 players)
Hero bets $6.50, CO calls $6.50

Turn: ($22.50) Q (2 players)
Hero checks, CO bets $15, Hero calls $15

River: ($52.50) J (2 players)
Hero checks, CO bets $37, Hero ?

hand 2: villain is 20/9/1.5 over 100 hands. c/c , c/f or b/f ?? bet sizing??

PokerStars No-Limit Hold'em, $1.00 BB (7 handed) - Poker-Stars Converter Tool from FlopTurnRiver.com

BB ($142.20)
Hero (UTG) ($100)
MP1 ($118.30)
MP2 ($68.55)
CO ($111)
Button ($80.90)
SB ($119.05)

Preflop: Hero is UTG with 8, 8
Hero raises to $4, 1 fold, MP2 calls $4, 3 folds, BB calls $3

Flop: ($12.50) K, 3, K (3 players)
BB checks, Hero bets $8, MP2 calls $8, 1 fold

Turn: ($28.50) 2 (2 players)
Hero ?

I usually just bet/fold the turn in the 1st. check/fold river is OK

2nd hand c/f turn, flop bet is OK

hand 1 what does his range look like? pairs, right? which of these are betting the river as played? more reads? bet fold turn is good. Check fold river as played

hand 2 ok, the flush draw hit AND you beat nothing. Check fold turn

agree with both the above posters 100%

Hand 1
Bet/fold turn, but id prefer c/c block bet river.

Hand 2.
Its likely a small pair could have called the flop bet, but you would be putting money in OOP, often enough with the worst hand on a pretty shitty board. Just fold and play the next hand.

agree with miffed.

Hand 1: Why are you calling the turn?--to spike an A? This is a perfect example of "you should just bet if youre going to call". In this case the on the flop you are beating almost this guys entire range and on the turn you are now a hug dog to a Q but the thing is he could have taken his line to the turn with any number of hands besides Qx although his nittyness makes me think its not THAT many. In this case your two options are check/fold or bet/fold to a raise, definitely not check call.

Hand 2: in this hand so far you made a standard raise and then a standard c-bet fine. Now here there is a completed flush and 2 kings. It is perfectly conceivable that you are ahead of his range but what is he betting the turn with?--only things that are beating you!--barring insatnity. So check/fold the turn. If he checks behind then it gets more complicated.