Pocd as a kid

(20f) I have been dealing with severe OCD symptoms for as long as I can remember. I recently got diagnosed about a year ago, and even though I know that these thoughts are probably my ocd, I still cant shake them. Growing up I was always very sexually curious. I was sheltered from a lot of things, as I went to a private school and things like sexuality and sex were never talked about. I remember doing some weird sexual things growing up (never affecting another person), looking up taboo sexual things, etc. I always seemed to become aroused no matter what the situation was, even if I just saw someone getting changed. I have no recollection of being SA'd, so i'm wondering where this all came from? Was I just curious and wanted to experiment and try different things? Or am I really a pervert, pedophile, etc. I have all these thoughts racing through my head and it's killing me. Everything I did as a kid I look back on and am disgusted, as those don't align with my views at all today. I never thought growing up thinking these things were wrong, or actually realize what they were until I got older. I'd like to think it was just my curiosity, but i'm not sure. What if i'm in denial and actually do like these things? I just need to know if theres something wrong w me, I cant keep going on like this. Could really use some advice.

i need some advice!! when i was 16, i was watching an anime and this character had abs and he was 12. i remember at the time (from what i can remember), i made a weird comment on his physique. saying things like “omg how did he become this buff haha.” and “oh im going to jail.” i even said “it’s only a 4 year difference.” like WHAT?!? just because it’s a 4 year difference, doesn’t make it okay. its WEIRD!! why would i say that? i also want to mention that i have a hard time keeping my thoughts to myself bc of my ADHD, so i tend to blurt things out. i just find it disturbing that i would have such thoughts, let alone say it out loud. i never had attraction to kids bc its immorally wrong and disgusting, but i feel no different from the ppl who would hurt children irl. I’ve tried forgive myself multiple times, but what i did is irredeemable. i feel like i am using my OCD as an excuse. i am so scared that i am a p, i want to d1e. my life is ruined.

I think I know what honestly is what caused my OCD. I’ve never told anyone this but I have to if I want help. When I was either 10 or 11, I think 10 I was at my family’s thanksgiving dinner. Around this time I discovered porn and got addicted. I would watch porn and read erotica. Because of this I guess I wanted to experiment. I feel absolutely horrible just thinking about this but I was playing around with my little cousin, he was around 7 I think and I remember we were playing chase or hide and seek, and I grabbed him and hugged him (something I never done before), and got a boner. I did this for pleasure. That’s all I did that was sexual but I feel so horrible. I try to give myself grace as I was only 10 and didn’t know the consequences of something so disgusting. I keep thinking “what if I went farther and hurt him?”. I talk to him sometimes and he seems comfortable with me and I think he doesn’t even remember this ever happened and just thought I hugged him for some reason all those years ago. I am NOT attracted to him at all but I think this incident and remembering it when I was 14 has caused my OCD such as POCD for all these years. I am 18 now but I feel absolutely horrible. And now it’s even worse because I have been invited to his 15th birthday party in Mexico. I’m traveling all the way to another country just to be near him! Obviously I know I won’t touch him or be innopropriate with him. But what if he has felt uncomfortable with me all this time? He seems fine with me and not uncomfortable around me but still. If I feel as if I go to this trip, I am a horrible person. I don’t know what to do. Am I a horrible person for what I did and continuing to be around him? I remember reading Reddit and Quora stories of similar people who felt horrible and people told them to not feel bad as they were only children and they learned and now know that was wrong and that to not tell anyone as it could only make things extremely awkward.Please help. I know COCSA is a very serious topic that harms people and I feel like a horrible perpetrator now.