How does one stop ruminating with Real Event OCD? It's so incredibly difficult right now :(

So, I know my capacity to get fixated on things. And it's normally something that's relatively remote but, my latest issue is really getting to me and I was wondering if people have any advice. I'm avoiding getting too into specifics, as I don't want this to get reassurance-y but, in essence.. I came to the realisation recently that people who I'd been "friends" (feels like the wrong term now) when I was younger were not very nice people, and normalized a lot of very unpleasant behaviour towards other members of the group. They really normalized it, sold themselves as figures of authority, as older and more responsible and grown-up than others, and looking back, they acted horribly. And coming to this realisation, that I'd been manipulated into just accepting their behaviour has just... broken me. My OCD has latched onto it and I can't stop feeling irreversibly tainted by it. I've talked to others about it, and they've reassured me, told me it's not a big deal and that I hold myself to too high a standard, but none of that sticks. I feel better for a bit, then think 'Maybe when you told them you were skewing it to make yourself look better' or 'Did you leave out a crucial detail'. I keep ruminating over and over, trying to remember exactly how everything played out, trying to figure out if I fed into the behaviour, if I did something bad myself (because y'know, I feel like I was accepting of it at the time, so what does it say about my own values?). I know I need to stop doing all this if I want to improve, but then some part of me keeps saying 'So, you're just going to let yourself off the hook then?' Normally, I can rationalize my own fears to some degree, assure myself something won't happen, but the realness of the situation, and the fact I only came to understand the reality of it because the thought had been bothering me means it feels so much more all-encompassing. I know confessing in itself is a compulsion, but I keep feeling that if I'm not I'm somehow concealing what I 'really am' from others around me, and any positive interactions are me deceiving them in some way. I feel like I can't enjoy anything in life right now, and a good part of me feels I should not enjoy it ever again. If anybody has any advice on it, I'm all ears. Or even hearing if you relate to these feelings, I might appreciate the solidarity at least.

So hard to not engage the thoughts because even though it's from the "past" (i don't even know if im remembering things correctly and it kills me) and i can't change it, I just NEED to prove it to myself that it didn't happen this way. If you'd asked me questions maybe a few months ago, I would have been able to lucidly explain things. Now I just feel like I'm in a constant swarm of thoughts, not knowing if anything is real. If my brain is to be trusted. Wish I could just get hypnosis to forget

17f Just like the title says. I came to realization that I lost a whole year of life. I remembered my real event in the end of january of 2024. Since then my life has been a living hell. Also kinda made a couple new smaller events through this year. And I know I deserve it cause my event was actually bad. Even people without ocd on reddit agree it was bad. It's still ocd, but I deserve it probably. For this whole year I haven't had a day when I wouldn't think of it. It became my default state to constantly have it on my mind. I walked around, pretended to have fun, talked to people. Most of the time I wasn't really there, I was thinking about my event. My event haunts me when I'm awake, when I'm asleep. I spend this whole year either freaking out, being depressed, thinking on methods to off myself, ruminating, seeking reassurance or trying to distract myself with books, TV shows, social media or daydreaming. Literally barely engaged with reality. So it's so hard to believe a whole year passed... I can barely remember anything that happened during this year. I can't believe this is my life. Probably doesn't really matter cause I don't plan on staying there that long. There is no way I'm going to experience piece with myself. So I will be out in a year or so, since my plan requires some time. Finally will end it all. It just feels very weird. A whole year passed. I was so deep down in my head I didn't even notice. It's scary.