Avoid chocolate, tea, pop and milk. Drink plenty of water. Take vitamins, I suggest Dr Ben Kim's natural source vitamins. Eat plenty of fruits and vegetables. Stay away from sugar and booze it will just make you more depressed. Get plenty of sun exposure.
Go to this site and follow directions, make sure to also request free healing
http://www.freehealing.com/illness/drugadd.html.
This is spiritual healing and it's free. The healing should help with depression. Just check it out I have been using it and it helps me with my depression.