How to get out of trouble?

I made slideshow with pictures 2 years ago. It was for my girlfriend, so I put it in youtube. Well, later on we broke up. I met another girl, and I still had that one video on my computer, so I thought it was easy to just change the picture on my ex and put the other one. It's the exact same video. I never thought that my actual girl would find it, but she did! I can't delete it because I made another account and I forgot the password!I know I'm an idiot, but I would appreciate the help.