My only comment beyond what you already have seen here is that you are tending to get a lot of money in without allowing time to really figure out what the other person has through betting patterns. You are also overvaluing hands you shouldn't be considering the evidence in front of you.

Hand 1 just bad luck against a donk, hand 2 I would have thrown away post flop, hand 3 as soon as he pushes on the turn I'm folding and hand 4 I'd probably get stacked as well because I'm doing the same thing. AQ vs. AK sucks.