When you sign up to Section, for the first time, you will be created as an Admin User on your own Section Account. In this account you will be able to add Projects and Users.
You can view and modify your details for the account under the My Account tab
User Access Management
Please see our article on User Management to learn more about how to add users to your account and how to set the appropriate permissions.
If you would like to have your account deleted, please submit a support request.