No need to create a new account with a different email! This would actually duplicate your account and create more trouble both for you and your School Admins.
Instead, all you have to do to update a new email is:
Enter the email of your choice in the Email field
Click on the Save button at the bottom of the page.
Please note: Admins have the ability to determine which fields are read-only or editable. If you find that you can't change your log-in/profile email, please contact your primary contact.
Please contact firstname.lastname@example.org with any questions.