Exactly the way I gave up as well.
tried 4 or 5 times to give up previously and failed miserably everytime, but read his book and thought it was a breeze.
That was 3 years ago and haven't looked back since. Got fat mind, as I've put on about 1 1/2 stone, but that is better than smoking.
Stick with it snez, you won't regret it. Try to keep yourself busy and if you get a craving, do something that will take your mind of it and it will soon pass.
Good luck