Oke, this probebly happend a month ago, or even more. But just now is when I noticed the problem.

So a about 5 years ago, I bought minecraft java edition with a gmail account.
just about a year ago, I bought minecraft dungions, but that I needed to buy on a Xbox account, so I bought it on my outlook account.

Then minecraft dicided to make the minecraft launchers one, with that migration stuff.
So thats what I did, I migrated my java account to my Xbox account.
So I entert the same outlook mail that I used for dungions so thatway they would be no the same account. And migration was complete, I migrated my java to a Xbox account, or so I thought. 

But somehow it decided to make a new Xbox account on the same outlook mail.
So now I have 'WantToBeeMe' (for my dungions)
And I have 'WantToBeeMe3534'  (for my java edition)
as 2 separate accounts on the same outlook mail.
If this was the only problem I wouldn't mind, I would just log in in both of the accounts and just switch when I want to. 
But the biggest problem is that I only can log in one of the accounts.

So when I am trying to log in to my Xbox acount, I am only able to log in to my dungions account. I have looked everywhere (I think), but I couldnt find any button to view if there where more then 1 accounts on the same email. 

The only place where I am still loged in as WantToBeeMe3534 (the java one) is on my pc. And I am scared to logout from that account because maby I won't get back in.

So brief recap

I migrate my java account, which created a new account on a outlook mail where there already existed an account. And this is creating problems.