Kristi,
It took me many months just to get in the right mind set to quit. For weeks I would tell myself I wasn't going to buy another carton at the grocery and did this for months . . . I finally got pissed at myself and one weekend I didn't. And when I ran out I quit. It's all in your mind! You WILL get to a point where you will just make up your mind that you're done!
I too had "tried" to quit many times before, but didn't last a day. But this time was different . . . I don't know what came over me . . . I just knew I was done with them. I'm sure everyone has their own story of how they did it.
Just don't get discouraged, it comes from within yourself . . a little will power, maybe a little being pissed at yourself for ever starting, maybe being worried about getting cancer or emphysema . . . whatever reasons you have for quiting, some day they will all gang up at once, and that GREAT day you'll set them down forever . . . I'm sure of it.
Good luck
Lucky!