Hello, my first account email is “jerm.gonzalez38@yahoo.com” under “JermSensei”

I made a new account called “Jerm-Sensei” under the email jerm.gonzalez23@yahoo.com, I’m trying to contact support to help me get my old username back please, I do not remember my password and I can’t reset the password to an email that is no longer avaliable. I already contacted yahoo and there is nothing they can do about it. My only hope is Opera GX helping me change my password or changing my emails, please let me know!