help me.... 2 questions that even pros may struggle to answer... maybe not.

Background info: I'm playing low stakes NL holdem .05/.10 are the blinds, $10 max buy in. Now these players are terrible, so they can have any hand at any time (to some extent).

1. let's say u have AA in first position, how many BB do u raise? Do you play it different than last position? Since these tables will almost always get calls all around, raising in 1st position just pushes EVERYONE out. Raising in last position makes them think "hey i'm already 10 cents in, why not call 30-40 more."

2. Sometimes when I raise (5x BB), I get 5 callers, and most likely 1 of them have me beat. And at other times, when I raise the same amount, I don't get a single caller.

3. When I raise with AKs and the flop doesn't hit my way. Someone is betting into me medium sized, what should i do?