Hey Hun,
i was exactly the same as you at school, if you're looking for a relationship i dont thing you'd get very far in a gay bar anyway, most of the guys are much older and mainly want sex,, and it can be quite a dangerous place to go at such a young age. if you look on google or something for a gay yuoth group in your area there may be one, we're lucky enough to have one liverpool (i've never ben though, i live right on the outskirts) anyway...
the internet is the only place you're going to find guys right now, its not a bad place, just make sure you get to know a guy throughly first,a d dont look too hard - true love is like a butterfly, if you chase it it will fly away from you, but if you get on with your life quietly it will come to you of it's own accord.
hope that helps a little. love matt xxx