The constant reaching for the cigarette was the hard part for me...I chewed a LOT of gum and had a glass of water where my pack of cigarettes was and it helped me a LOT. Two good mental tricks for me were 1.) making sure that I didn't ignore the cravings by trying to do something else (you know, "oh, I can ignore it I'll just go eat something/work harder/distract myself somehow") and just realizing/focusing on the fact that even though I wanted one, it was no longer an option for me to have one. And 2.) realizing that no matter how many excuses I came up with to rationalize having a cigarette, none of them were worth finding out I had heart disease/lung cancer/cervical cancer and so on. I just had to keep talking to myself every single time I had a craving. It gets easier, I swear.
Reading what everyone has been posting here helped me quite a bit too...even though I rarely post I really got a lot of comfort from seeing other people going through what I went through too.
Good luck, although you won't need it! You will do great, and post here whenever you feel like you need the support. Everyone here is SO great.