I don’t want to believe it happened

It’ll be 2 years in May. I wrote down what had happened in my notes the night it happened. But new things keep coming up in my head and I don’t know if they are the truth or my brain is trying to rationalize what happened. Am I trying to protect myself or am I remembering the truth? At this point I just wish I could say it never happened. Like it was a bad dream. But I don’t wanna lose touch with reality bc I want to be believed by whoever I may tell in life. But I’m worried that I can’t even believe it myself. I know it happened. I just wish it didn’t.