Hey again.

First thing is, I think KQo makes a decent call on BTN vs CO when we are semi deep as well.

How often to cbet the turn? Never in my opinion. Once we get called on the flop, I don't think a PP like 99 or lower continues.
TT and JJ in opponents range easily. Also maybe AJs.

J on the turn is terrible card to barrel.

Btw don't forget our hand strength! What are we really getting bluffed by that is worse than our hand? Nothing.

Maybe an AQ might(and I really think it's only AQ and even less likely AK) that may sense your weakness and bet, but I don't think it'll often at all be the case as I can't see opponent thinking you have a small/mid PP to bluff at given your preflop 3bet.

So overall I just wouldn't worry, postflop seems fine.

I think this is fine. Flop sizing looks good.

On the turn he should be x/jamming a bunch of Jx and some bluffs if he has them so checking back a lot makes sense. This is a hand that it's particularly important to not get blown off your equity so a check should be great.

River unimproved yeah has to be a fold. If you think about it though, he can't really be bluffing you because he called a flop bet. He'll nearly never have worse and his bluffs will be stuff like KQ (chop) and AQ AK.

Well played standard spot. Sizing around half pot is great on the flop.

I know how you feel about getting bluffed on the river everytime when you c bet and have to check behind on the turn, but nearly all micro stakes villain's won't bluff their showdown value combos and there won't be that many floats or worse draws in their range. Also a lot of villains will check AK AQ to you on the river as they expect to have the best hand some of the time and are just generally passive.

FWIW KQ makes a fine call on the BTN versus an unknown CO open. Sometimes it can be an idea to lean towards calling more often until you have some idea about villain's tendencies.

Well played. As for the flop sizing, I think it's totally fine.