I donked this one up pretty badly. But I'm wondering how to improve, though I think I can speculate.

Villain who has position on me is 69/17/4.5 after about 50 hands. But somehow I never saw a showdown from any of his winnings, and he had already doubled-up before I sat in. After hand 1 I should have left the table for a better seat.

Historical hand (sometime earlier in the session):

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.25/$0.50
9 players
Converter

Stack sizes:
UTG: $54.05
UTG+1: $76.45
xTheHorrorx: $49.25
MP2: $112.75
MP3: $70.20
CO: $51.30
Button: $85.60
SB: $52.25
BB: $63.75

Pre-flop: (9 players) xTheHorrorx is MP1 with T T
2 folds, xTheHorrorx raises to $2, MP2 calls, 5 folds.

Flop: A 7 Q ($4.75, 2 players)
xTheHorrorx bets $3, MP2 calls.

Turn: 4 ($10.75, 2 players)
xTheHorrorx bets $5, MP2 raises to $10, xTheHorrorx folds.
Uncalled bets: $5 returned to MP2.

Results:
Final pot: $20.75

Fairly standard play, I hope.

This one came up sometime later in the session - I was playing nitty and really hadn't seen much, though I had reloaded since the hand above.

Poker Room skin
No Limit Holdem Ring game
Blinds: $0.25/$0.50
10 players
Converter

Stack sizes:
UTG: $43.75
UTG+1: $123.35
UTG+2: $61.80
MP1: $81.70
xTheHorrorx: $46.50
MP3: $117.45
CO: $95.50
Button: $47.05
SB: $37.75
BB: $50.00

Pre-flop: (10 players) xTheHorrorx is MP2 with A J
4 folds, xTheHorrorx raises to $2, MP3 calls, 3 folds, BB calls.

Flop: 9 Q J ($6.25, 3 players)
BB checks, xTheHorrorx bets $4, MP3 calls, BB calls.

Is this standard raise and c-bet? Am I making a mistake in c-betting an agro and chasy player? Of course his smooth-call says nothing, as he would float plenty of flops in raised pots.

Turn: 3 ($18.25, 3 players)

Now what? My hand is very mediocre given the board and villain could have a flush draw, top pair weak kicker, any combo of pair or pair + draw etc.

Thanks for any advice. Against an unknown opponent, I'm probably check-folding the turn here, but against this one, it's questionable. I'm not sure how much show-down value I have, but I am fairly certain that opponent will bet with anything he has if BB and I check.