I've been playing 5NL for the last few weeks. I'm currently running 24.72/8.97/1.4 (VP$P/PFR/AF) over 2,897 hands. My BB/100 rate is 15.21. I know my stats aren't great, but I think I'm doing okay I just seem to be making the same mistake. Here's the scenario:

I get pocket KKs. Someone raises ahead of me, so I re-raise (typically double their bet so if they raise to .15, I'll raise to .30). they call, flop comes down with rags. I bet the pot. He re-raises, I re-raise him, and he goes all in. I call, he has AA. I'm beginning to think that I should just fold with KKs if I get re-raised.

Any thoughts?