Re: How to I change the EA account linked to my Xbox live?

@nicksylvester61 Please read this article for information: https://help.ea.com/en-in/help/account/linking-your-origin-account-with-your-psn-id-and-gamertag/

If you need an additional assistance, please contact EA support:  How to contact EA support

Personally, I recommend to recover the access to your old EA Account 🙂