HUSNG NL HE: 3rd hand, another noob question

Hi.
New to HUSNGs. I've played one some minutes ago. My opponent has raised and won the first hand, and folded to my raise in the second hand.
The following hand I raised 10-10 (from the sb), he reraised and now I???

Is a push a no-brainer at this spot? If I know that my opponent is a good player, I have no problems with pushing. If I think that I have an edge, maybe calling and taking a flop to see 'how many overcards' are coming is the right play?
Btw, I pushed. I mean 10s should be a little monster heads-up, shouldn't it.

What do you do with: 22-99, AQ, AJ...at the low blind-levels without any knowledge about your opponent?