1- My riverbet got called by KT in hand 1.

2- I folded the turn. This hand I'm the most unhappy about, because AA is still pretty high in my flop calling range and AJ is very unlikely for villain.

3- I think a better bluffcatcher and/or something with more backdoor outs to semibluff indeed is preferable to play back.

4- Still not sure what's best tbh. Our bet isn't getting called by worse (maybe a gutshot, but he'll be winning the pot from us on the turn/river), so it's not really a valuebet. It's basically if we have enough bare FE combined with 5 outs vs better hands.