OCD bad false memories

I get bad memories flowing through my head quite a bit, and I also get a lot of just awful false memories and I feel like I legitimately was the root of a problem I had barely anything to do with. My compulsion is reassurance and confession, I feel like I must reassure that I didn't do the thing I get the false memory from and that I must also confess to remove some of the guilt. Every one of my obsessions most of the time is not true, but it's just so hard for me to accept that, and on top of that I also talk way too much about my obsessions to people asking for reassurance and I think it's starting to annoy most of them. Does anyone here have any advice to dismiss or push away these false memories off my mind? If you do I would be extremely grateful. Thank you for reading and have a wonderful day!