Why is my Minecraft account broken?

I tried to add my other email to my microsoft account but it says its part of a reserved domain, So i cant add it as an alternative account. So another minecraft player is using my email for their minecraft earth account and thats why i cant use it? When
i sign into minecraft earth i come up as princess.cossign which isnt me but when i play on normal minecraft everything is fine, why is there a problem all of a sudden because of playing minecraft earth? Id like to be able to use my main minecraft account on
minecraft earth and not have it come up as someone i dont knows minecraft account. I dont want my email connected to another minecraft account and i also feel bad for the the other person that they might have lost access to their account because of this mix
up or whatever it is, im so confused... please help!?

Why i can't play using my Microsoft account on my minecraft pocket edition

Hi, I hope you're doing well and safe out there. I'm an Independent Advisor and I’m happy to help you today.

Sorry to hear about your issue with Minecraft. Let's try some steps that might help. Kindly right-click the Launcher. Press “App Settings.” Browse the settings and hit “Repair,” followed by “Reset.” Let the Launcher restore to its previous settings and try to launch Minecraft.

You can also check the link below for more troubleshooting steps:

https://help.minecraft.net/hc/en-us/articles/66...

Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.

Update - I mananged to sync One Minecraft save and it is not where I left when I last played. This save is a good 3 months old. Why are these saves old and not new?

This cloud stuff is broken as hell

Problem got worse. My console was essentially bricked when Minecraft kept trying and failing to download. The home screen looked all broken, icons stopped showing up and are still to this point broken. No apps or games would load. The console would crash
after being on for a minute or two. I fully deleted Minecraft and blocked it from downloading again and it fixed the problem. No other games have this happening, residually several of the icons on my home screen still broken though