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.
Later, it has been inculcated the Google API and share buttons for websites which allows school administrators and developers in order to engage further with the Google Classroom. Recently, it has opened a classroom in a way that users can join to classes no matter whether they're having a G Suite as education account at classroom.google.com.