Your betting in hand 3 is horrible. Open raise. as played $2 on flop. as played $4 on turn.

If you're not building pots then you are missing value. Betting $1 on the flop and $3 on the turn gets the same value as betting $4 on the flop. If the now bigger turn bet ever gets called (i.e. > 0% of the time) then you will make more money.

If you want a stack you have to know how to get your money in.

I check hand 4 a lot figuring someone bets and I can check/raise. Turn is fine.