ULPT Request: How to delete youtube videos I made as a kid

I’ll save you the details, but basically I wanted to be an internet comedian as a kid. I made a youtube channel when I was 9, and another when I was 13. I want to take down the videos (or at least some of them) but I don’t remember what email I used for either of them, so I can’t even begin to troubleshoot this.

Most of these videos are pretty embarrassing and I want to move forward in my life knowing they aren’t out there for anyone to find.

Anyone have any tips/solutions?