First NL live casino game: how'd I play?

[Ruhr]

Hi folks, I have been a strict low LIMIT HE player in casinos, though I have played NL cash games online and NL tournaments. I played my very first casino NL cash game (1/2) today. Wanted to post some hands to see if I bet correctly.

I was a little intimidated. Slightly intimidating looking players--or maybe they were just your average young punks with sunglasses. Tricky guys trying to slowplay their KK pre-flop for more action later (is this customary at these low levels??). Being new I decided to play a straightforward game. I was short-stacked compared to most players.

1/2 NL at the Tropicana in AC.
Hand #1
Got KJc. A short stacked villain guy who appeared to really ponder calling decisions earlier, raises to 10. Couple callers, I decide to call. Flop, KJx with two spades up. Villain bets 10, others fold, and to me with my top two pair I raise to 30, he calls and we are heads up. Turn is a rag spade, but I am slightly worried with that flush draw on board. He checks to me, I go all in for 57. He thinks for a while but calls. Two pair KJ is good and I take the pot.

Hand #2
Couple hands later, same villain is short-stacked and goes all-in for 23. There are some folds, then action to me and I see JJ. I raise to 50 to get remaining players out. Indeed, it becomes heads-up. Lucky me, board is ten and rags, he shows KQ offsuit and I take the pot, sending him home.

Hand #3
I see red AA under the gun. Minimum bet is 2 but I raise to 15. Everyone folds to me (did I bet too much)? In disgust I show my AA expressing frustration that nobody wanted to play with me.

At that point, I had doubled my buy-in and was just happy to get out of there a winner. I didn't want to pay blinds on the next hand so I bolted out of there.

I was incredibly lucky to get three good hands like that--the rest were all easy pre-flop folds, but I wondered if I played these hands right. Any suggestions?