reporting old acc

just recently found one of my old accounts that I have still up from years ago and realize I don't want this on the Internet anymore. I was very under aged and blatantly just embarrassing myself that being said, I try to log into it didn't work and then I reported it a couple times and now I can't find the account it's not even listed in my reports on the TikTok center the videos that I viewed aren't in my activity what does this mean?