Think your preflop 3bet size is way to small, i also dont like your CB sizing. Definetely value CB the turn and reevaluating on the river... any reads?

Yeah I'd 3bet bigger, atleast 4 bucks. Even that is relatively small considering what most good players do.

And on the turn I would bet, I don't see a good reason not to.

3b bigger
smaller otf on this board texture since it is good for ur range
barrel turn for value

I had played more than 500 hands with the villain.. 24/21 type of a guy with af less than 2.
Pre it was a misclick.. recently started using hotkeys.. pressed the wrong one i would have ideal raised to 5$
Usually depending on the villain i would not bet more than 2 streets... with top pair.. Flop c-bet is must on this board.. Turn i checked coz i didn't want to over play my hand.. i guess i under repped eventually.. after turn check / call.. no way i would bet river as no worse hand is calling.. his river bet was more than 3/4th pot... and i believed him... coz i don't think he too would bet three streets with anything less than 2 pair

I don't see the point in betting flop so big here. We have an enormous nut and range adv. I would also check turn. He is not gonna call down light here and is prob going to make way more mistakes if checked too. I mean if we are betting all AQ+ here i can't see how he can call turn with AJ.