- Good drugs, at least in the short term, to help break the cycle.
- Cognitive therapy to get you started on the right thinking/behaviors path.
- This book: http://www.amazon.com/Undoing-Depres...dp/0316043419/ (I'm halfway through it myself, and that's enough for me to give a hearty recommendation.)
- If you have a smartphone, the app MoodKit looks very promising. I've downloaded it but haven't started using it yet; however, it gets excellent reviews.
You could just keep venting when you feel the need ... but I don't think you're happy with that approach, or you wouldn't have posted.