I am constantly there... but most of the time I can put it to one side enough to get on with my life. First thing in the morning is the worst time. My 'Dark Passenger' is often there before I awake. I have learned to deal with it, and I can function most of the time.
I haven't used medication for over 20 years. I am still tempted to when 'hopelessness' sets in... but thus far, support from family and friends, and various mechanisms I have developed keep me going.