Getting Accounts Back

Hi there,

I'm trying to figure out how to get back two tiktok accounts that forgot passwords to.
I didn't use real emails/numbers for them. I can prove I own 1/2 of them if TikTok allows that (I was young and dumb), the other account is private so all proof i could have isn't known (if that evens makes sense).

Does TikTok have a way to do this or any tips? I have potential passwords written down that i've tried and do not work. I would really like to get access back to remove these accounts from the platform and save the posts (from the privated one) for personal memories. Has anyone tried this or have any tips?