I can't get this one thought out of my head because it's so scary! I feel like it won't ever go away :(

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?

idk why this is such a recurrent thing for me , I get so scared through the day when I’m not distracted when I think about psychosis. or being put in a mental hospital that it gives me bad anxiety, one time I had a panic attack at the thought of having it 💔 I can’t pin point if it’s intrusive thoughts because it’s a fear of mine .. or not. I think this is the worst thought / fear I have

I’m constantly thinking about what if I go crazy.No matter how good I’m feeling the thought always creeps back in same with what if no one is real.I used to get anxiety from it but I don’t really get it anymore as much which scares me.How long did this last for anyone who experienced this?I feel like it’s been going on for months and I’m scared it’ll never go away.