School work.(Note the pain.)

Hi, I'm not sure if this is the right place to put this, if it isn't, then I apologize. So my account, Tamaki Shion, Southerneast(I think, Philippines.) Asia, I can't access it. I accidentally clicked the log out button. Well, I don't really remember the email and password of the account, maybe not the password, but the email for sure.(I might have used another person's email, and that person probably isn't able to speak with me for a long while.) Can anyone help me? Any help for...