You can change your email by clicking on your name in the top right corner of the page, and then clicking on the "My Account" option. Navigate to the "Contacts" tab, and you will see the option of changing your email address. Don't forget to click "Submit" when you have finished.
**If you find that you are not able to change your account's email, it is likely because the email was generated in relation to a Canvas account. In this case, feel free to email firstname.lastname@example.org for help with your email address.