I'm 13 and my real account needs to be converted to an adult account but I can't log in

Hi, thank you for reading my post.

As the title states, my account is about to be converted to an adult, but I cannot log in as there is no email linked to my account as I know of, my parent does not recall creating my account with an email and only entering in a username. I'm using a throwaway account just to get to the forums and support team (well, I tried to)

Does anybody know any way to assign an email and password to my account so I can log in? I am trying to get in contact with support but the support page says 'The Meta Support Team cannot help you with problems with your account, but you can visit the FAQs' and they did not help at all.

I am trying all the methods of trying to get in contact with the support team to help me.

Please, help me, my account will be deleted on the 14th of June if I do not get my account converted.

Meta, if you are reading this post, the system needs serious upgrades. Why can't it just give the instructions in the Meta Horizon app instead of sending me emails to my account that has no email linked to it, nor a phone number? Also, can it just convert automatically and simply tell me what I can now do with my account? I'm getting really upset over this as my account has a year's worth of data, including from games such as UG, Gorilla Tag, Wizherd and many, many more. I will lose all of it soon if I don't get any help.

Is there any way at all that could possibly help me sign into my account? I need all the help that I can get before my account gets deleted, thank you for helping me