As Sprocket says , the first week is the hardest but you must beat it , like Slidegrinder I've lost relatives to it and thought I was joining them some years back, thats why I quit .
You are now a non-smoker , you don't smoke anymore , you don't need them .
About once every hour the craving gnaws at you , so you tackle it head on ,every hour , try to do something . In a couple of days its not so often, keep going.
If , as said you have gone for a week then you have it cracked .
Your next target is another week and thats how you need to go , small steps at a time .
I did the same as Ali , had my last packet with me for weeks till they were flat and squashed and my mate threw them away.