It's easy to fix typos in your email address or name. Just log in to your account and click on the down arrow next to your username on the top right of any page, then select Account:
This will take you to your account settings page. From this page, you can fix any typos you made during registration or change your language to Spanish (course content will still be in English). Note that a confirmation email will be sent if you change your email address through this page.
The optional fields in the registration form, including education level, gender and year of birth are only used for demographic purposes. It's ok if you made a mistake with one of these – they won't show up anywhere in the system or on your Statement of Accomplishment. You can fix any of these through the Account Settings page.