Sometimes when you are down and depressed you just need to talk to yourself. And remind yourself that your hope is in Jesus Christ and only through him can you achieve real joy.

http://bible.com/111/psa.42.11.niv

Why, my soul, are you downcast? Why so disturbed within me? Put your hope in God, for I will yet praise him, my Savior and my God.
Bible.com/app