when i had cravings I found it helpful to have a 'mantra' to repeat to myself. Mine was ' all i have to do is not smoke'. sounds daft but it helped me. another helpful thing is to read this list of the things that are in cigarettes. http://www.quit-smoking-stop.com/harmful-chemicals-in-cigarettes.html
good luck - it can be done.
good luck - it can be done.