Hey Amber, I'll be your email buddy if you don't mind keeping me accountable aswell.
I'm 16, 5'8" and 175 pounds. Hopefully having someone younger than you as a buddy wouldn't be 'too' weird. I'm on the same track as you, i need to lose about 60 pounds, and so far have lost about 10.
It's going to be a long haul, but it will be awesome to not have to try on the XL clothes in stores anymore
I don't feel comfortable putting my email out on the forums (spam you know? >_<) but feel free to pm me if you still need a buddy, and i'll give you my email that way.