I just passed a year smoke free. You can do this. I am so proud of myself. It was very hard in teh beginning, but not as bad as I thought it would be (from past experience). I think I was just ready. And every day that went by made me want to go back less adn less b/c I had come so far. If you need support give a shout out. And one or two slip ups does not mean you have to throw in the towel. Just keep trying.
Wishing you the best as you give it up. Hopin' it gets you knocked up (and sees you through a whole 9mos!)