Can anyone relate/give advice?

So I identify as a lesbian and I am in a committed relationship with a wonderful girl. But i’m stressing that I have crushes on boys I go to school with. I get anxious around them, which I think I mistake for excitement. I obsess over it in my head which confuses me a lot. Idk I also never think about them sexually or romantically but I think about them often which is scaring me. Any advice?

I need too know that I'm not insane, really. I am 16 and for the past two weeks, this has been completely ruining my health and happiness. I only recently came out as a lesbian like 3 months ago after a lot of confusion about my attraction since I used to think I liked men. At first, I felt so sure that I liked women, but lately, I've been having these unwanted thoughts about the possibility of liking men. I never used to feel this way, but now, every time I look at a man, my brain obsessively fixates on it. It forces me to imagine kissing him, loving him, things I don’t want, and then tries to convince me that I do. It’s painful. The thought of this fills me with fear and anxiety, leading to panic attacks and breakdowns. I don’t want these thoughts. I hate them with every fiber of my being, but I’m terrified that one day I’ll act on them and somehow like it. I used to think I liked men, but back then, I was in a very unhealthy space in a time of escapism and something deeply parasocial. I’ve only ever liked the attention and validation a man could give me, but these experiences are somehow treated as further proof that I’m "bisexual." I’ve never been in a real relationship with anyone, which makes my brain constantly challenge me—telling me, “You don’t even know what love feels like.” It won’t shut up. It keeps obsessively trying to make me prove that I’m a lesbian, testing my reactions and questioning my certainty. Is this normal?

I’ve been really struggling the last week and I need some help. I’ve been seeing a guy for about 2 months who checks a lot of my relationship boxes. He’s so kind and we have a lot of fun together. The first few weeks I was totally smitten but had moments of fear about being committed. We talked about it and decided to take things slowly, and then I would have days of feeling like every thing was perfect with some fearful feelings in between. Two weeks ago now my SO-OCD and ROCD started to come back a little as well as my more anxious-avoidant behaviors. I started to get more scared of the future and it was more intense. At the end of last week, he asked me to be his girlfriend and I said yes. He is exactly the type of person I see myself marrying and has great values and is so secure about me. Until last week, he generally made me feel so safe and secure. Ever since saying yes, I feel so scared and anxious and my SO-OCD and ROCD is on max. I also find myself getting more annoyed and irritated about things that were minor annoyances or non-issues before. I’m having intense physical responses to both OCD themes, and the nagging thought and feeling that I need to end things with him because we aren’t right for each other. It makes me feel so sad and guilty. Sex is becoming harder because of the thoughts too, whereas at first it was perfect. I don’t know who I can talk to about this without them telling me to just break up with him. Everything is so new so I think they’d chalk it up to my intuition. But I do want to be in love and have less fear around relationships, so I don’t want to give into the fear. I think it could help me to set boundaries and have space for myself more often. I think I need some advice or insight. I know I shouldn’t ask for reassurance, but having some around how other people have felt at the beginning of a relationship would help. Why is it that the label is freaking me out so much? How do you guys set boundaries to prioritize yourself when you feel this way?