Talk to your doctor, and tell him/her you have depression. Look up symptoms online so you know how to answer the questions they will ask you.
Get them to prescribe Wellbutrin XL. One of the side effects are people quit smoking. I have been smoking for 16 years and am going this route. The first two days on Wellbutrin you get hellibuzzed. After that the cravings get to be less everyday.
I am in the process of shaking the old routines I had when smoking. I'm quiting slowly. Currently smoking less than half what I did three weeks ago.
When I'm truely ready to quit, I'll be less likely to strangle someone, taking these pills.
Insurance covers Wellbutrin but not Zyban which works the same.