When I first became depressed I did not think I would get better, but then a very good friend help get me into therapy and two years into having regular therapy I started to say "ok girl its all up to you - swim or drown" and that was the turning point into me getting better.... all that was twelve years ago and I can say today that "I am Better" and I no longer want to kill myself to stop the emotional pain.
So... never give up.