Hi, Desperate&disturbed! Please forgive the blanket approach. Chances are some idea, some technique buried in this collection can help you -- or somebody else reading this thread.

Living with Depression (PC article)
What do you do to help your depression? (PC thread)
How to Cope with Depression (WikiHow)
How to Overcome Sadness (eHow)
Ellen's Depression Primer (MentalHelp.net)

Fox News: 5 Things That Will Make You Happier (Fox News)
7 Quick Ways to Calm Down (Therese J. Borchard)
Distracting Activities (Nonsense’s list at PC)
Coping With Stress Using Self-Soothing Skills (About.com’s Matthew Tull, PhD)
5x5 Technique (Elysium at PC)
Jennaorgana's Mood Lifters

Things to do instead of hurting yourself (PC Self-Injury Forum)