Hand_1 - Fold
Hand_2 - Um, seems like an easy fold at low stakes, if its +ev can only be barely
& will cause too much fluctuation, better places to get your money in.
Hand_3 - 4 bet pre-flop, as played I like the all in, On this board AA or KK really has to bet again on turn not check, & you could be giving AKs a free card.
Hand_4 - Don't like the call, as played you flopped two pair, in this case
I might raise to 50$, the guys above hate small raises, but in this case I think shoving gives AK AQ a chance to get away & you're only called by hands that beat you, but I doubt this guy will be able to fold AK to this raise & will probably shove & you call.
High variance play for a stack though cuz I think you're probably ahead here only 55 to 60% of the time.