Check out the Johnny Cash version of NIN's Hurt.....its pretty powerful. As for the book, yeah it addresses the physcology of smoking and helps you to understand the fear. Its what helped me to finally quit.
I was a heavy smoker for 30 years and tried to get free a number of times. What really helped me was the Allen Carr book. After reading it I just stopped, cold turkey. It works on the brainwashing aspect of the nicotine addiction and you keep smoking while you read it. Give it a try, you may be surprised. Keep jumping in here for help, every one has some great advice that you will find helpful.
Thats a good feeling Detox, your body is healing itself. 12 days in and going well , you are doing this!!!