OC creating advice

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

Is this pocd? OCD?? Please no judgement!! This has been on going for years and I want the thoughts to stop and enjoy anime again :( not the other way around I used to love pride from an anime fmab (full metal alchemist brotherhood) when I was 14-15. And I feel so guilty because he took the form of a kid cause he’s a villain who can disguise himself and possess. I never liked the kid but more personality. I don’t think I NEVER EVER had romantic attraction to the body. I feel so gross talking about this as I’m older now and know what this is. The thing is Pride the homunculus character is ancient years old but his disguise is 10 years old and they have the same height but Pride is literally just a shadow with eyes and mouths in in the general lore of the anime. I do not like him now. As I got older I stopped liking him. Not in a sxual way even at all but just in general but my brain is making me think I like him or I used to in just a sxual way or ftish type of way but I DO NOT!! Idc I just feel disgusting. And I don’t want to have him as a favorite character anymore. How can I explain this to a therapist?! Any advice? No judgement please.

I’ve always struggled with maladaptive daydreaming I’ve stopped but I have harm ocd and my brain would hook onto a true crime story and I’d pretend to be a family member/loved one/victim of a k*ller and would make up elaborate stories abt it. That feels so disgusting I’m so scared this shows in a horrible person doesn’t it? And now my brain is telling me I have found k*llers attractive in the past I don’t think I ever did but what if I did I’m scared