i think im a lesbian but i dont know

I've always been into girls since i was younger i know ive always been attracted to them but ive also been attracted to men but now that i think about it i think i might just be into girls.
ive grown up going to a very christian school and have a very christian family but they arent pregudice, ive always grown up with the idea of relationships being men and women. ive mainly had bofriends before but i realised that i didnt actual want to do anything with them only kiss. when i came out to my mum she said it was a phase and said i wasnt which hurt but i dont think she meant to be mean but my dad has aways had dodgy views and makes homophobic jokes which really hit hard when i realised what that really meant when i grew up.
im confused if that ive subconciouly wired my brain to think that i need to have a boyfriend and thats why ive only seen them as dateable and focused on them the most when the more i think about it the more it makes sense that im a lesbian, like when i think about being with a boy intimately it can make me tense up and i dont think it would be good. but im also scared that im not as i think i would have known from a younger age.
i think i need to sort of unwire my brain and re wire it if that makes sense and i think i play apart it in as well as i feel like ive not fully accepted myself as gay.
i would really like some advice from people how have gone through similar things becayuse it would mean a lot to me and would get a better perspective also sorry for my awful grammar im writting this in a rush as ive got some work to do for college