Need help recovering an account. (Don't remember e-mail or password, but...

Drftwood

Hi, I made this account to try and recover an account of mine that has the in-game username of "Pyramid_Head"
I can't remember the password and I don't know which of my e-mails that account is linked to. I am willing to provide any information necessary that'll help me recover my account.
I tried sending a support ticket, but it asks for information that I don't have, like the e-mail for example.

I played this game for years and I can't let my effort go to waste. Help?