okay so I have been thinking a lot and I really want to tell my best friend I'm in to girls but I don't know if I'm bi or lesbian so I quite know how to tell her or if I should tell her at lot?
Your friend shouldn't be too obsessed with your sexuality, so if you come out as a lesbian and end up being bi, that shouldn't be too big of a deal. If you just say "I like girls" then that's not really a strong statement. Or just say you don't know if you're bi or a lesbian. If you think it would make you feel better then do.