Sexuality

I think I'm gay and I'm very upset. I like girls at school who seem like they flirt, but you know that's just girls right? I can't tell who's gay and I am just so fucking sick of it. All I want to do is come ou, but you know fucking homophobic people have to ruin happiness and make you feel like you're nothing if you gay so that's not an option. Anyone else feel the same way?