Sue - I can feel your struggle with nicotine addiction.
There is an old expression, if it ain't broken, don't fix it. If I may be so bold, it seems that what you have been doing has not worked, including reading the book by Allen Carr on several occasions. I have not read his book, but I am familiar with the premise, and don't agree with the main idea he promotes.
I would recommend the website whyquit.com. It was the best source of information for me. I used a 'scientific' approach for the year 2008 - my designated quit year.
I started out by changing all my smoking habits, one at a time. No more smoking in the car. No more smoking while talking on the phone. No more smoking in my bedroom. No more smoking after eating.
I also switched brands of cigarettes. Not sure if American Spirit cigarettes are available where you are located, but they do not have the 4000+ chemicals that the major commercial brands do. I believe they are available online as well, so try a google search. When I switched from Marlboro lights to American Spirit, I went through a mini withdrawal because I no longer was ingesting the chemicals. Then after I was accustomed to the American Spirits, I started slowly cutting out those cigarettes that were unnecessary, until I was down to less than a pack a day.
I watched the movie, 'The Insider'. That movie made me so angry - angry at the CEO's and angry at myself for allowing myself to become addicted and ruled by tobacco laced with nicotine and other chemicals as prescribed by the CEO's of the tobacco companies.
I struggled with the addiction constantly, berated myself, hated myself for continuing to smoke. I took the anger and used it to help me quit.
I watched a program a few weeks ago about people who had suffered brain injuries, and when recovering, could no longer work at what they used to do. For instance, a surgeon struck by lightening, no longer had any interest or desire to be a surgeon, but now had music constantly playing in his head, and took the next step to become a concert pianist.
This show reminded me that we use very little of our brain - and so much power within ourselves and our brains goes untapped - we truly can do anything if we set our minds to it.
I also meditated and asked for help from my parents (both deceased) especially my Dad who passed from lung cancer. I also reflected on all the years past that I have struggled with some pretty heavy duty problems in my life, and had to use the inner strength I am blessed with to get me through.
I decided that I would count on that inner strength, the knowledge that the drug would be out of my system in 72 hours, and that from that point on it would be all social and/or emotional. I did the homework...and I am now a non smoker - today is day 6. After 40 years!!!!! I thank myself for this gift, along with this website, and whyquit.com, and all the other forces at work. If you really want to quit, you can do it. YES YOU CAN!!!!