My late father is a psychiatrist. My wife is a medical resident. What you said is fairly accurate. Both my wife and late father say if someone shows up with acute mental problem, you prescribe lithium-based meds, sleep-inducing meds and/or in extreme scenarios, shock (ECT) therapy. For mild forms, it's one-on-one therapy (most listening what the patient says). Psychiatry, as it is now, is more of an experimentation than it is a science.