How to stop ruminating?

When an intrusive thought comes I can’t just say “that’s not true” and just move on. I always feel like I have to disprove the thought and be able to say it with confidence but the problem is that the ocd doesn’t allow me to feel and say it with confidence so I get stuck for hours or even days. How can I stop feeling like I need to do this?

Guys I need help. I feel so alone . Basically I have this compulsion where I feel the need to write everything but this stems from me being anxious about EVERYTHING. Like my mom came in my room and I was irritated and snapped, immediately regretted now I keep writing “don’t be mean to mom next time” but I keep thinking about it. Then I think about how I finally left my house today and all the surfaces I touched that could’ve been contaminated and now I’m writing “next time don’t touch this and this”. Then I think about all the things I need to be doing for this week and I’m writing “don’t forget to do this and this” even though I’ve written it 5 times already. This is what happens everyday btw. My brain always thinks about something I need to be doing and making me anxious that I’ll forget it which is why I write it down on my notes app. I’m sooo mentally exhausted I need help pls!! Anyone have any advice ? I used to think I need to stop the writing but really I need to stop the anxious thoughts coming into my head . People say I need to accept the thoughts and let it go but that’s too hard for me

I struggle so bad with intrusive thoughts. They can be so bad that I'll cry because I KNOW that's not how I feel or want to do. (Too embarrassed to say what they're about) I'll constantly try to figure out why I have them, and constantly figure out what they mean, causing me to constantly circle around and around. I had to get on anxeity meds, which helped a little but the thoughts still happen. How do you help yourself with this? How do you know that you're just not some physcopath? 😅