Uh, no. That's not what I said at all, and it's not true.
A dear friend of mine is still alive right now because her psychiatrist hammered into her that she needed a list of people to call when she felt suicidal. When the crisis came, she was just barely able to remember to call me before she reached for the knife, and my phone was charged and in my pocket because she'd told me about the psychiatrist's advice and I'd promised her I'd be available 24/7. I'm a pretty forgetful guy, but I forced myself into rigorous phone-care habits because of that psychiatrist, and that's the only reason that she didn't slit her wrists and bleed out on the carpet that night.
With severe depression, your best chance of a positive outcome comes with a solid support network and a well-trained, reliable psych professional. You need both.
