Villain is a very straight forward 5nl player, 24/21 over a reasonable sample, 1.3AF. Never seen him check raise or donk and his default mode is calling rather than raising. Button versus small blind, is 3 betting TT pre standard?

I freely admit to being on a bit of tilt at the time, cards not falling the right way and a general feeling of people mucking me around and getting the best of it. Is a big leak in my game to fix.

Should we be barreling here? I feel he has Jx a good deal, maybe AJ, and 3betting pre with also a flush draw on the board I think I can get him to fold a lot. But then I've been betting so large that he hasn't needed to raise, and so maybe he is just letting me blast off. I felt like once I got to the river I had to 'finish the job', but is a check on the river better?

Pre fine.
Flop fine.
X/c turn.
X/f river.

This comes down to how wide you 3b SB vs BTN - ie A2s+, K8s+? Also would you be going for thin value with an overpair?

Yes villain is likely holding Jx but I wouldn't be surprised if he hero'd with A or K to go with it.

As played this is a fold, you made a small 3bet, you'll be surprised what kinda hands people flat IP in these spots. Flop play is fine, turn is a check now i'd decide if he is bluffing enough that i can x/c turn and river, otherwise i'm folding turn, i'd never x/c turn and x/f river. Either fold turn all call both. If you have some stats on him allready you should determain if he is honest or dishonest player.

Otherwise i'd prefer calling preflop.

You can rep AKss, QQ, JJ, AA and KK wich is actually not bad but you will be looked up w Jx - so I agree with Kiwi here

Also AQss and ATss btw

I prob wouldn't bet anywhere tbh, maybe flop vs some but not always

I think this is a terrible run out to turn your hand into a bluf with.
His holdings are very strong and include many many flushes.

The 3b pre is fine, if not, standard.

So is your flop CB

I really hate your bet on the turn, you have a medium strength hand and a fd, just ch/c these spots.

As played river: with a shove, pretty much no hand better than you will fold (especially at these stakes) and everything worse will fold.

so I would go with Kiwi_Shredder's line too.

I think your problem as you describe is you're on tilt, and if you check the turn, they take yet ANOTHER pot away from you because cards aren't falling your way, but bet/bet/bet isn't going to solve that, time will, stay on your A-game, take a break when needed and take this line when you do have the AA or flushes.

Bigger pre

Flop is close imo since we can get value from pocket pairs and lots of Ax/other floats, plus we don't want to give a free card.

As played, your bluff line is less than good because you don't block the A, K or Q-high flush.

Check-call the turn with your hand, but check-fold with your non-Ts combos.

Sent from my VS870 4G

Thank you for your views sirs. Lots of wisdom.