What Would Be The Best Choice?

Ok it's a bit of a long story but I'll cute it as short as possible. I've been single for a while and I'm kind of tired of it. I'm only 17 and I know I still have plenty of time, and relationships at this age normally don't last anyways but I kind of just need someone whose more than a friend right now, to help push through this stress before I leave for bootcamp. There's this one girl I've liked a little since last year when I met her, and we're pretty good friends, she's pretty, nice (to me) and great to talk to. Then there's this other girl, I met at the homecoming a few months ago, we didn't talk, but we danced together. And I've been seeing her around the halls a lot, and saw her at a basketball game almost a week ago. She would look at me, then when I look back she'd turn her head. Then one time we just kind of stared at each other for what seemed like forever. But I know there's an attraction between us. But the thing is that I know nothing about her, only that she is frickin gorgeous lol. But this leaves me confused. I don't want to end up dating my friend when I'm having thoughts of this other girl, I would never want to hurt anybody like that. Should I take a chance, or just not risk losing our friendship?