Possibly Bi?

I have a bit of a problem. So like, I have multiple LGBT+ Friends (around 10 or more) and a lot of them basically told me they got massive gay vibes off me (Their words not mine) and I got to thinking about it and I'm starting to think I might be. How did you guys know? I'm kind of struggling with this and I really have been for a while. I really want to date a girl because I genuinely think I might be Bi but that's a really hard thing to do while in the closet at my school. Any suggestions or answers?