Anna,
Don't feel bad if you do get moody. I think it goes along with what you are doing. One of my friends who is doing this right now said that she had to quit watching tv and quit playing on the computer because those were her favorite times to smoke. She checks in periodically just to let her friends know how she is. I think she's down to 2 cigarettes per day, rather than quitting cold turkey.
You do what works for you!!! Just make sure to let us know how you are!!
Logan