someone hacked my account and changed the emails and passwords, how can i merge my old...

You don't

Accounts can't be merged you will have to work with the account.microsoft.com team

To recover your account

It doesn't.matter what he changed it to they are looking for the OG ms account and no he cant change that

You can only change the alias and password

The og account info is what the team is looking for

my epic account was hacked and they changed my email and password, how do I recover it?

How i back my Facebook account no e-mail access so how i achange the password

the thing is this account on own is my 2nd account my main account is the one with the problem, but lets see Im going to try and recover it. If I can't I might need some help because a few years ago I was hacked and someone changed my email? how would I
be able to recover my email and password for the account? I have the original email that i made the account with

You can't merge data between accounts. But you can change the primary email associated with them

Yes, I would love to do that. I'm trying out the account.live.com/acsr method detailed in the video but just in case, tell me how to change the primary email associated with my old account?

That explains why fifa shows up on my hacked account. They got hold of my email and via social engineering with support they changed the password and used someone credit card on my account and purchased stuff.