Not sure why you 3bet 79cc in hand 2 but don't 3bet 88 in hand 1 unless opp in hand 1 was a total nit. As played, I don't see how you can do much else. You could check behind flop and give up, but that's weak.

Hand 3 I don't like PF, but standard afterwards.

Hand 4, did you stove a range afterwards to make sure your call was okay against that range? His shove does look awfully bluffy but I think you are looking at getting outdrawn pretty frequently, he can have a made hand/set/combo draw pretty easily and imo the best you can hope for is a chop.