On the right hand side of the menu bar that runs horizontally across the screen there should be a My Account option. Click on that, then the edit option. From there it will display your current email address - you should be able to change it there and enter your current password as a verification, then save the settings at the bottom.
On the right hand side of the menu bar that runs horizontally across the screen there should be a My Account option. Click on that, then the edit option. From there it will display your current email address - you should be able to change it there and enter your current password as a verification, then save the settings at the bottom.