I am just starting my fourth week. It took until the third week for me to quit, and yet I still haven't

I smoke two cigs a day, both after kids are in bed. Yesterday I didn't have any, but tonite my neighbor gave me some to smoke.
It makes the cigs taste horrible. It is purely the hand to mouth action that I smoke for, the physical addiction. I don't really want a cig, I don't worry about when I get a break at work so I can smoke anymore, but late at night when everyone is asleep, I want to smoke.
The meds seem to make me feel sick if I smoke. I do think it works, however, I will say I have noticed a HUGE change in my moods since starting this (or cutting back on the cigs, not sure which is to blame). SO actually threatened to buy me cigs a couple days ago because I was so bitchy. I have no patience anymore. I hope that goes away soon!!
I hope everyone has good luck with it! I want to quit bad enough I am paying out of pocket for this damn medicine, so I am stuck taking it no matter what!