Hand 1: I make the flop raise bigger
Hand 2: fine
Hand 3: Fold after his 3bet preflop. I just might stop raising hands like 76o here, cause he is only 50BB deep (maybe just sit out and ask him to play 4 100BB) and he showed, that he defends /w T6o.
Hand 4: I make a larger flop raise again.
Hand 5: I fold preflop, cause J2s is a awful hand to defend - especially /w a halfstack
Hand 6: I might just raise the flop, cause he looks so weak and I want to punish hands like 67 for drawing.
Hand 7: If he had a larger stack, I would make a larger 3bet, but since he only has about 60BB your 3bet pre is ok. Played fine
Hand 8: I 3bet the turn 4 sure! Make it like 7.5$ and make a big bet on the river.
Hand 9: standart

Hand 10: fine
Hand 11: I make the flop raise larger.
Hand 12: fine
Hand 13: Do not raise that dry way ahead/way behind board. If he has 66+ he's not going to fold! I would check behind the turn to take the free card. He didn't belief you on the flop and he's unlikely to fold 77+ now, since the turn didn't really change anything.
Hand 14: fine
Hand 15: You COULD check behind here on the flop from time to time. Without any history I might just fold vs his minraise, cause if he has QT, AT or something, I'm in a world of pain, if he hits 2pair.
I might just call his bet on the turn, cause he won't call a raise /w a small pp and I just like to see the river and his action.
I check behind the river here a lot, cause I don't see, what he will call with.
Hand 16: Any history? If he 3bet before, I just repop him here. Without history I might just fold the flop.
Hand 17: I make it pot or even more, cause of the flop structure. I might just bet the turn again, cause there are so many draws he will call us with here.
Hand 18: I don't see a 6 in his range, so I just value bet the river and call a shove.
Hand 19: I 3bet TT preflop here. Postflop is fine and he chose a very bad board to triple barrel...
Hand 20: I might just bet the flop and shove the river. Flush over Flush in HU is just a cooler.
Hand 21: fine
Hand 22: fold to his 3bet every time
Hand 23: fine
Edit: My Post #500^^ I'm not a great HU player, so my advice might be a little tight or something ^^