(NSFW?) Did my OCD actually turn me into a criminal? How do I live on now

I'm 17 years old I struggle with addiction I have a problem when I masterbate I have intrusive thoughts idk if I think them I'm so scared also back then I know when I was younger I looked at obscure things hentai all that my idk what to do even I feel like I'm a monster or im a bad person I need help I feel so distraught I feel like I can't live life to the fullest anymore even from last year I looked at content that was animated but it had a character in it that was underage I felt so ashamed and felt like a monster I had a compulsion to check it only to find out they are not around my age range idk what to do I probably sound like a freak I'm sorry I'm always trying to replay my memory and try to remember my intention and what I was doing how I come across how I was doing a action yk all that

since february i have "POcd". Initial symptoms were thoughts, but then I did a testing compulsion during an intimate time, and I spiraled ever since. I struggle with addiction to smut. I'm cutting that out, but I feel as if it is too late. Ive never experienced this much mental, and emotional anguish in my life. On my time on this application I have given advice to others, and helped around, but I wonder if that even applies to me. Millions of times I wish I could turn back time and be more careful. I want to prevent many things, including what led me to spiral into OCD in the first place. I'm surely having an OCD episode. I have gotten a diagnosis, but I'm still not sure. I feel evil, cause unlike many here, I tested on my body sensations and it backfired (twice) I know I'm not supposed to figure out why that is the case, but now I have to live with it for the rest of my life even if its something I don't desire. This is disgusting for me, it is abhorrent. I could've never seen this coming. Day by day I've become more fearful of living with this, "OCD". I was a normal person before this, I knew what I was attracted to, I know my preferences, so why did this come about? This is singlehandedly the most painful thing that has happened to me and I have nobody but myself to blame. I am scared of death but I also would'nt mind sleeping for years on end. My parents and brother were understanding of my situation, but I failed them regardless. I don't want them to see me this way, nor do I want them to learn more of my predicament. I'm cooked. I know it, Fin, thats all folks. I'm only 20 and I already have other diagnosed mental illness so I recklessly brought upon myself another one. Its agonizing to live through, I wish this on nobody, not even my worst enemy. I can't even identify myself at this point. Its tearing me apart.

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.