incorrect email address entered

[AWS]

I entered the wrong email address and I have since set up another one but the old one continues to be the one used for signin and then of course the password doesn't work with it and I can't connect to anything because it is an invalid email address.
I have looked at other entries describing this but none of the suggestions work. When I try to Switch to Microsoft Account all I get is my account with the wrong email address. There must be a way to fix this.

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