Psychiatrists prescribe medicine, and may also use psychotherapy, although the vast majority do medical management and refer to a psychologist or other specialized therapist for weekly to bi-monthly psychotherapy.
Classroom is only available for Google Apps for Education users at this time.. In your web browser, sign out and sign in again with your Google Apps for Education account. On the mobile app, you'll be asked to add another account. Sign in with your Google Apps for Education account.
For more information, see Get the Classroom app. Classroom is free for schools that are using Google Apps for Education. You do not need to have Gmail enabled for your Google Apps for Education account to use Classroom; however, if you don't have Gmail enabled, you will not receive email notifications. Note that if you have your own mail server set up and receive Google Drive notifications, you will also receive Classroom notifications.