The scripture tells us that a cheerful heart is good medicine. So how does one acquire a cheerful heart in the midst of despair? I know you don't want to hear this, but "doing" is the best way to overcome a crushed spirit. Doing anything with a crushed spirit requires optimal energy, which is why knowing what awakens the joy in your heart is so important. Think about the last joyous season of your life and write down 3 things you were doing consistently in that season. Of those three things identify which of them brings you closest to Christ, and the next time your spirit feels broken try taking a dose of the good medicine.