Hi!
I quitted on the 13th of November 2009, then had one cigarette on the 15th, but stopped completely after that. Last year I went through a lot of emotional stress

, I was very lonely, but I still remained smoke-free.
Recently I got better emotionally, I have few friends who helped me a lot

, also go to therapy, but a few days ago I started to smoke again. It feels that I got my life back, but on the other hand I really feel bad about it.
I do not want to smoke and I feel that I am such a failure.

How can I stop it again? It was so hard to quit. How can I gather strength to do it again? What can I do???