hand 1: id just bet out myself for close to pot, but if you are gonna check raise check raise harder i.e. for 3.5 or more, 2.5 simply isnt enough in this situation. The hands preety much fine from there.

hand 2: bet turn a bit harder, like 1.5 is good. id also bet more on river to as if he has the projected range your putting him on hell call, betting $3.3 sounds good to me.

hand 3: fold, youve got little invested and your right, he has the nuts here way to often.