I agree with the bigger raise preflop in Hand 1.

Villan could be playing back at you with air, so a reraise on the flop was appropriate. I would of raised more. At this point, you could see where you stand by a larger reraise. By committing some more cash now, it will make your decisions easier on the turn. As played, I think you are behind to an AJ, KJ, QJ. Villan could have a very wide range of hands with the small preflop raise. I fold the river.

Hand 2, my recomendation at micro limits is to play trouble or potential trouble hands passively. Dont play these hands for top pair, play them for 2 pair/straights. If your going to raise with this hand, you need to raise it the same as you did the first time with QQ. Why help out the table by adding pot sweetner? I have noticed that at micro levels, a .30 or .40 raise will be just incentive to get into a hand. I get into as many of these hands with marginal hands, since you can put it to a good starter hand.

As you played it, I would increase your bets to 3/4 pot rather than half.