I need help with self control...

I think One other thing that may be hindering my game is that there are a few hands that I don't know what do do with...

Here are a couple examples I would like to ask for help on:
Do I every play JQ in early position? How about late position.
If I'm in EP, and get AQs, if I raise and get 3 bet, how do I approach this situation? What if Qxx spikes on the flop, and what if Axx flops...? I'll try to come up with more scenarios I'm unsure of as they present themselves.

Here are my stats so far from an EXTREMELY small sample... Typically for 1/2 Limit, what are basically the ideal numbers to become a winning player?

VPIP - 26.72
PFR - 9.16
W$SD - 50.00