Have you ever filed a harassment complaint against a co-worker before?

This past Monday I officially filed a harassment complaint against an older male co-worker, after two years of keeping my mouth shut about his b.s. (PLEASE don’t judge me. There were a lot of factors going into my reluctance to report him before now. Feel free to ask me for details if you want but otherwise, keep judgments to yourself).

I’ve submitted a statement and incident list to my supervisor, and now I’m just waiting to see what happens next. However, I’m honestly kind of scared of the outcome because I already know he’ll most likely deny everything and it’ll become a “my word against his” type of situation. I know I have no reason to lie or make things up, but of course he’ll act innocent to save himself.
What happened in your situation? Or have any advice?