Changing email ID

I have created this account by one mail id. but now i want to change to another email. how to do this. Can someone advise please. Thanks

I have not tried to do this yet but
Click on the top right of the screen, your account icon
Click the person symbol, click preferences
Scroll down
You should be able to edit or add another email Addy
Iā€™d suggest add a second that way you have a backup