18+ I’m so worried I feel like I’m panicking

I have this same situation replaying in my head. It has to do with porn so if your young just know this may be a little graphic. I tend to use Twitter for porn and the reason I do this is it’s a lot more direct I can type in what I want to see and it’s there I don’t have to go through unknown websites and hope not to get viruses, and to be a little more specific more amateur/ real sexual experiences come up on Twitter rather than porn pages with staged written scenes. So in my use of Twitter for this there’s been times when questionable material/ illegal material has come up and never did I save it knowing it was 100% illegal or even interact with it if I knew it was 100% illegal. I was 18 or 19 at the time of this and I started to fear that in these moments I would look at these illegal videos/ sketchy videos to long when they would pop up like for example I remember seeing a video that was 100% illegal content and I was so shocked and like confused that I looked at it for a moment and then left and then I went back to look at it again just to confirm that I was seeing what I thought I was seeing I also remember seeing videos that were in a 18+ section but sometimes the girls in the videos looked like they could be 15-17. As we all know 18 year olds can look anywhere from 15-17 or even younger these days so I would be cautious and use my context clues and what I knew when watching videos that I was suspicious about but had no proof of them being illegal aside from my thoughts and the person looking young. So with this and me worrying I got super scared and hyper aware of what I was watching and now I remember me going back on Twitter to look at content that I was intending to be 18+ but all I would think about is what if something illegal would come up what if I see it and I look for to long or what if I feel attracted and I like it. And I just remember going back to Twitter to look at legal porn but it felt like I was there so that something illegal could come up to see how I’d naturally react to it. Never did I go and type in key words or type in anything illegal in fact I remember times I would strictly put 18+ next to whatever I was searching so I could be sure everything was legal but sometimes it would feel like my hope and intention was that I would see something illegal so that I could feel that anxiety rush or just to see how I would react naturally to seeing it and I feel like this would count as me intentionally looking for it so now I feel disgusting and like I committed a crime. Sometimes I just feel like I was only looking at porn because I wanted to feel that anxiety of what if something bad comes up and how would I react. I know deep down I didn’t want to see illegal content and that I was probably just feeling that I wanted to check how id feel if it did come up but now I feel like I was intentionally looking and that my whole objective was for something questionable to come up so I can see how I react. Is this ocd or did I just make a horrible decision?

So one day a couple months ago I saw some posts on threads pop up on instagram and they said I’m 17 and horny and 18 and horny or I think I even remember see a 16 year old one. I’m 20 and I remembered that when those popped up I clicked on them and I don’t know if I did it out of true attraction or out of the urge to make my anxiety go away. I feel like often times if I see something that says any number under 18 even if it has nothing to do with age it could be talking about season 17 of a tv show my mind immediately goes what?? 17??? And then I click on it to make my anxiety go away. So when I remembered all of this I downloaded the threads app because I wanted to see if I could get reassurance and see if I could rekindle how I felt in these moments. When I opened the app all I saw was posts like that but everyone claimed to be 18. The only problem is none of the girls looked 18 they looked like 14-16 so I started to panic I and worry that because I clicked on the threads in the past it popped up more and I was a pedophile for that. All of the accounts all pretty much had only fans links so at that point I was like well they have to be 18 then but now I’m worried that maybe it’s a scammer and they are using underage pictures of girls and putting them on onlyfans. Which I know is out of my control but I just feel like a Pedo and like I did something wrong. Does anyone have any advice? Or have any similar situations/ similarities with this?

TW: porn mentioned When I was younger around 18-19 or maybe younger, I stumbled across some porn labeled as 'teen'. I don't remember if I watched it or get scared away by 'teen', but I then searched for porn something like '18-teen years old', I wanted to make sure it was legal. Now I'm spiraling that I did it because I wanted to see someone younger. Or what my intentions could possibly be? It happened for once or I cannot remembered searching something similar ever again. I've always preferred bigger more masculine men, but why I did that then? I had active porn addiction since I was 9 or I'm afraid younger, watched some things that I regret watching... And now I'm 23 and don't watch it all for like 3 years, because I found out that it was unethical. When I was little I preferred BDSM porn and everyone was very mature and I did not watched anything questionable with real people, but some weird fictional stuff, but didn't like it. Now that I remember this I'm very confused and don't know how to continue living with that. I'm just done...