Hello, Daniel!
Welcome to Microsoft´s Community. Here your inquiries are always well received.
We hope this message finds you well.
As we understand, you would change the primary email address of your MC Profile so you can associate it with your preferred email account.
We will be glad to assist you with your request. To do so, please share some information we require, over the Private Message we have initiated.
Once you provide these details, we will be pleased to proceed with the proper process to assist you with your request in the best way possible.
We are attentive to your response,