Final answer:
Sarah should schedule an appointment with a psychiatrist for treatment of her depression.
Step-by-step explanation:
If Sarah is struggling with depression and it is interfering with her everyday activities and sleep, it would be recommended for her to schedule an appointment with a psychiatrist. Psychiatrists are medical doctors who specialize in mental health and can diagnose and treat mental health disorders, including depression. They are qualified to prescribe medication and provide therapy to help manage and treat depression.
Learn more about Treatment options for depression