I know who I am and my sexuality. But because I’ve been questioning for so long, I’m scared of falling in love with girls. How do I stop being scared and act normal with my friends??

So i started to feel like a lesbian again and that i have to be one. I dont want to be one. I just dont. But being straight feel like a lie now. I question my whole life, my feelings and everything. The biggest indicator of this must be that i will be slowly 21 year old and ive never dated anyone and i dont really find anyone attractive and i dont even know if i truly was attracted to someone and im scared of relationships i might have trauma or have anxious avoidant attachment. Help me. I do feel lost. Really lost. I dont know who am I anymore. I feel like that i must have been gay my whole life now. I feel like an alien. I sometimes feel like 2 people are living inside of me.😞😞😞

Sort of a rant that probably sounds stupid and I’m kind of seeking reassurance… I’m still a relatively young teenager so I know I’ve got time to work all this out but I’m really confused about my sexuality. (I’m a girl) I’ve never been in a relationship (I don’t know if I want to be which is why I’m writing this) and sometimes I feel like I’ve never really had a crush and I just convinced myself that I did because I wanted to feel normal… but then maybe that’s false memory ocd??? I don’t really want to be in a long term relationship with a guy and idk about girls but idk if that’s just cos of my age??? Some days I hate the idea of ever dating, marrying or doing anything sexual. Other days I wish my mental / physical health was better so I could date someone! Everything I feel goes up and down a lot and idk why!? I have bad sexual intrusive thoughts that make me unsure whether anything that I think is real and my parents recently split up after not getting along for a few years. I don’t know if it’s my age, my ocd, my parents bad relationship, my sexuality (am I attracted to guys, girls? Am I ace!!!!???) Or something else but I have no idea who I am and I KNOW I’m young and have time but some other perspectives might help???? Can I ever be in a relationship if I have ocd like this? Also I’m really struggling not to compulsively seek reassurance and I don’t know who to talk to about all this irl I know I probably shouldn’t share this with random strangers but also idek if I care anymore 😭

I don't know for sure if I have HOCD, but it seems like I do, I tried to accept the idea that I'm gay, I felt calm, and then I started to get scared because I didn't feel anxiety anymore, I still feel attracted to my girlfriend, both physically and emotionally, but I feel an attraction to boys, sometimes I panic when I feel attracted and sometimes I don't (but most of the time I do) and I don't want to break up with my girlfriend I want to get back to normal