I gave up smoking in 2003 using the book after 20 a day for 20 odd years.
What it made me realise is that it’s all about the addiction. That’s it. There was nothing else, the only reason I smoked was because of the nicotine addiction. I didn’t want to smoke, I needed to smoke.
Once you accept that and understand that the cravings can be very easy to recognise and ignore it’s pretty easy to stop.
First few days were odd but if I was tempted I just reread the parts of the book that I’d found useful.
Also found as I now ‘understood’ the addiction bit that I didn’t yearn to be a smoker anymore. I was just glad to be free of it.
Not sure it’ll work with coke and hookers though! 🙂