I need some relationship advice, What went wrong?

I just need some advice, the ? isn't what went wrong, just advice is needed. First I'd like to say, anyone who reads this I give you the biggest THANK YOU ever. I'm 17 and I was just bsing around one day and I make a yahoo personal, fill it in completely honestly and really didn't expect to meet anyone because for one, you have to subscribe to talk to people, and two hello its the internet. Anyway, I decide to put my AIM s/n in my profile figuring maybe someone will IM me and haha screw personals charging me money for that ****.. Anyway I really didn't expect to meet anyone on there. So one day I get this IM from a girl who lives actually about an hour away from me (I didn't know this until about 2 weeks after I started talking to her). Anyway we start talking and from day one, we're talking EVERY single day. Literally, whoever wakes up 1st IMs the other and we talk until someone goes to sleep (obviously we're doing other things at the same time but u know what I mean).