The most comforting thought is life is a rollercoaster so least you know if your headed down there is going to be another up....unless the ride is ending..

Really though,take a step back and see where you are and set some simple goals to meet...nothing massive,just anything.You don't have to blast through every brick wall thats in your way...just chip away at it.

See a psychologist if you feel worse(they don't give medicine,they just talk).Theres no problem with asking for directions around the big life city.