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.
Although Quizlet will link with a Google Classroom, it is not designed to interoperate with a school's LMS or SIS, though the company's API does allow admins to export useful student information. Rather, Quizlet offers a simple, user-centric online tool for rote learning.