You are not able to directly change the email that you log in with. However, if you have the appropriate permissions, you can create a new login for yourself by adding your new email as a new admin and grant the same access that your current account has. If you do not have those permissions, you would need to reach out to someone within your organization to have them do the same as the above. You can follow the steps found in this article to set up a new account with the same access.