Anyone deal with scary false memories?

Has false memory OCD affected you so badly that you feel that a lot of your memories period are unclear, vague, fuzzy and can’t recall correctly?

I have had the same false memory/instrusive image of me doing something horrible to someone when I was 12 and they were younger. It is a memory based on a real event. I truly don’t know if it’s real or not but obviously, the more I think about it the more I think it’s true. This has led my mind to become slightly paranoid. I worry that if this horrible image in my head is true then one day the person I might have hurt will come and k*ll me. I’m really scared I feel like I won’t feel better as long as this “memory” is in my head. Does anyone have advice?

can a false memory feel very very very real? because i literally don’t know if something happened or not. absolutely no clue but it feels so real