Ok, so there is a girl I have liked for about 8 months now, she never used to talk to me but all of a sudden she started when i told she was pretty when she was all depressed, I talk to her more then I do anyone else, a few hundred text messages a day at home and at school I talk to her alot, we've never hung out outside of school until this comin Sunday were going to the mall, I am totally in live with her and I've told her that, she says she loves me back, but the only problem, as her best friend, still I love her but am not able to see myself in any sort of sexual relationship with her. Is this normal and any advice?

Just because you love her doesn't mean you're emotionally ready to start a mature physical relationship.
That's perfectly fine and normal. It's OK and normal to wait.