how can one deal with being horny? I feeling very bad because of it and worried. I really dont want to feel this anymore, I dont want it.

Hey guys I'm 17 years old I had experience with OCD I looked trans pornography and femboy stuff I'm straight I didn't jerk off to it I was really only looking at it in the past I have but for some reason I just felt like looking at it and when I did I did experience arousal not only that while I had a boner I simultaneously was thinking of memories and bad actions I had in 4th grade with another boy I myself not a homosexual I was a kid I did something with another boy I regret it I had that thought in my head lingering there in my head but I noticed pre ejaculation and now I feel anxiety because now it feels like I was intrigued by the thought it feels like it is it was probably to the video visual stimulus but it's hard I didn't jerk off to it at all I was really just looking idk what to do it feels like I did experience it to the video but also my thoughts say to the thought idk what to do can someone shed light on this

It’s like my brain is doing everything in its power to convince myself and also justify an attraction to teenagers. I hate myself. I don’t want to be this person, but what if I don’t have a choice. How do I get these thoughts out of my head permanently. I feel like my life will never be the same if they don’t leave forever. I can’t tell what is a real desire and what OCD is trying to convince me is a real desire. I can’t do this every day for the rest of my life. I don’t want to hurt anyone, or I don’t think I do but how do I even tell anymore. This might not even be OCD at this point, I can’t separate my thoughts from OCD thoughts I think because I’ve had OCD for so long so it all just feels like me. Maybe it is me. TMI but I haven’t pleasured myself in like a week because my libido is so low now, I don’t want to do it with these thoughts.

And what is happening...let's say I come across a video of that person and then I stop the part where it triggers me and I deliberately imagine images of a sexual type, and if I don't feel anything, I look again, as if I want it or I have the urge to imagine it, i.e. I feel the need, and if I feel something or get a feeling in my groin and I feel like I fall into despair?