Make an appointment with a specialist or general practitioner. This is coming from one, who is walking the path.
At least 50% of clinical depression is genetic. It has nothing to do with lack of willpower. Also, as in my case depression can be caused from an insult to the brain (TBI). All efforts to control your anxiety/depression should be initiated by medical personnel. Too, a great majority of the time if one has anxiety, he/she will also have depression. The number one health problem in the world today is stress; consequently, all steps should be taken to control it.