am i a lesbian??

ive been debating about this for probably two years at this point. when I was (12 then, now almost 16) I identified myself with bisexual but as years have gone on I noticed I don’t really like guys. Yes, they can be attractive but I don’t look at them and think I want to date them. I’ve dated a few guys before but I never had sexual attraction towards them. But with girls it’s a whole different story. Theyre beautiful and I want to kiss them and do all the couple-y things and im definitely sexual attracted to them

pls help