Hey Royalty_god13,
Unfortunately once you link an account of a specific type to an EA account you won't be able to link a different one. As per our unlinking article:
When you link accounts, it creates a lifetime link to protect you from malicious activity and help prevent performance issues in your games.
You can unlink your platform accounts from your EA Account if you want to link them to a different EA Account, as long as that EA Account has never had the same account type linked to it before in its lifetime.
That means if you unlink an Xbox gamertag from your EA Account, you can’t link a different Xbox gamertag to it in the future.