I am in 5th grade and I like a girl but the problem is Im a girl so what should I do?

First of all i'm not againt lez or bi but you will get bullied if you admite that you're well bi or lez if you stil know her when you're 15 then tell her. Or just say "if i was lezbiand would you be against me or like me as a friend or if i was a lezbiand and i liked you would you make fun of me"?
Plus i like other girls too so maybe (me and you)?