I need help I think I have homosexual OCD, I know I’m not but I can’t get it out of my mind...

So basically, I don’t know when this started, but basically whenever I look at a girl, a girl on a phone screen, or even a cartoon that’s a girl, I have this weird tendency that I like them, even though I’m straight. And though I am fairly young (still a teen), I’m positive that I’m straight, but my mind is giving me these weird feelings and signals that I’m not. And disclaimer, I do not have a problem with people with other kinds of sexualities, but I am feared for my life about this. I’ve honestly been keeping these tough emotions and feelings in me for days now. I don’t want to tell my mom because I don’t want her to think bad of me, and we also live in a Catholic household, so the thought of having a different sexuality is a lot on us. I’ve done some of my research, and since I’ve had many different types of OCD for quite some time, I’ve come to the conclusion that apparently I have SO-OCD or HOCD (basically the same thing.) I don’t know if this is true or not. But some other websites have told me that it’s just a part of being a teenager and growing up, and finding what love interest suits you the most, but I honestly have no pleasure with this whatsoever! I constantly think about, “oh, what if you like this girl right there?” Every time I walk past a girl, and sometimes my mind agrees with it, but deep down I don’t want this. And even sometimes, when I’m watching a video, or looking at boys in real life, looking at boy cartoon characters, most of the time, my mind tells me, “this boy is cute. I am attracted to him.” But other times, I completely disagree with that statement. Same with girls, so I don’t know. And also my mind tells me, or something in me tells me that the guys at school that I like, I don’t like them anymore, and instead I look at the girls, in which I know that I’m not attracted to, so it’s just a continuous cycle like that and I don’t know how to stop it. Someone please help because I don’t really know how to explain this, it’s just tough on me.

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?

First I want to start off with, as a kid, my brother touched me inappropriately, I watched him do the same with my cousin, than later on I did the same to my cousin. I feel great shame for it and I have yet to forgive myself. Now, since than 10 years later, I have always loved women, fantasized about women, constantly prayed to have one and do things to be with one 1 day. I struggled with porn a lot as a kid because I was shown it at such a young age. I remember first watching lesbian porn, than moving to guy and girl, than countdowns, etc. I was so hooked that it took an identity crisis to end this porn addiction. (I have only been sober for 3 weeks.) Now I only mention this because I think my porn addiction somewhat ruined me, same way as what I did in the past did. A year ago, I started to talk to a childhood crush I had, and things felt so great. We started to get along but I knew all I wanted to do was have sex and move on as wrong as that is. I ended up falling in love with her and asked her to be my girl. 9 months in, we were having constant arguments and she had this problem where she couldn’t give me a break. We were with each other 24/7 and it felt like dealing with a sister at some point. I remember talking to my friends and asking them what would they do and they always advised me to leave but I was not willing to because I knew I loved her and the way I was feeling was temporary and couples argue. Couple weeks in, I started to have these thoughts that we weren’t going to work out and that I no longer found her attractive. I kinda ignored them because it simply wasn’t true, I still found her attractive and would get hard ons for her yet, I still had this mindset that, “Oh, there’s other hotter girls” and, “Your ex looked so much better.” and I couldn’t stop these thoughts. One day I randomly woke up and remembered what I did as a kid, my whole world felt like it flipped. The thoughts were now, “what if you don’t like her because you’re secretly gay?”. I first laughed at the thought because of how ridiculous it sounded, but than it just kept going. Two weeks from a cycle of unwanted thoughts (1st stage of my ocd), I finally got over the thought with simple toughness and determination, I did lots of research on what was going on with me and went with the, “thoughts are just thoughts” method. I was doing well until we watch a netflix documentary “American Murder: Gabby Petito” and all of a sudden my mind began to think, “What if I’m secretly a psychopath and want to kill my gf?”. For about a week straight, It’s all I was able to think about. It scared me so much and I didn’t know what to do. I started to get urges to KILL my gf. I didn’t know what to do so I left the room and crawled up in a ball, crying to god asking for help.These thoughts went away but were quickly replaced by, “You want to kill your gf because you’re just gay”. This sent me into such great panic, I couldn’t eat for days and couldn’t feel anything but anxiety. Days went by and I finally went to a doctor, at first I started to feel better as If I was getting help and things were going to be okay. The thoughts went away again as I began to start doing more things and get out of my room (head). I felt like I was back again, I was able to love my gf, I started to go to church, I felt that god was real and than boom. Here I am again and this time things have gotten really bad. I can’t stop “checking”. As soon as I wake up I check if my gf is “good” enough for me. I check my past and see if I have ever done anything that show signs of being gay. I check out other girls and guys to see whether or not I like one or the other. Even when I accepted the possibility that maybe I am just gay, my mind will fight me and tell me that I’m more than just gay. Truth is, I don’t know anymore. I’ve always loved girls and my gf. I don’t know if this is OCD anymore but I wish for my old life again. I’ve always been so proud of my sexuality and loved everything about it. I never been homophobic but gay stuff does make me uncomfortable. Each day feels like I lost another part of me. I feel like I can’t live like this anymore. I lost all my belief in god, my morals and value feel so weak, and my life is no longer a fun enjoyable thing to look forward to. I need help.