It says it already has an account logged in and I forgot it's email so I can't log in with...

Sorry English not the best at explaining. So no I've forgot my microsft account so I was forced to make a new one because I couldn't get any emails. I changed my email for my ps4 i have everything all my games and everything. On minecraft I was logged
out of the account and is telling me I have to link to be able to play online . When I try to link it says I can't successfully because I my ps4 account is already linked but I can't access my old email and password inorder to log in.

No we can't log into the email that has the account gamertag associated with it. Nor can we log into the Microsoft account....

The only place the gamer tag is logged in is the Xbox.

So then saying log in add a new alias doesn't work cause we can't get a code.

They want us to remember subject lines of emails from an outlook account we haven't used in years

I forgot the account and the video has his account already logged in mine is gone..Not in my account list.

You would need to contact xbox support by going to support.xbox.com/contact-us and give them the gamertag and if they can verify ownership of the account they would be able to tell you what the email address is that is associated with that gamer tag

Hello Ricardo Lechuga , I have logged in or tried to log-in with every Email but I couldnt find any Account with the Gamer Tag PlainGiraffe615 . As of now I think the Account doesnt exist. I would request to delete the Account fully if it doesnt exist already as my PS4 still says Im already logged into that Account.