Huge addiction, tried a couple a times. The best way that worked for me is cold turkey. Decide a day that you're going to do it. The day before get rid of all parphelia. If you have to stay home in bed all day do it. The physical part is not more than 72 hours. If you want support go to smokers anonymous. You must want it badly enough, don't wait, I know lots of people that died of lung cancer.
You have to look how disgusting it really is, look at the pros of quitting, financial, physical, energy etc
The negatives, your breath smells like a ashtray, you're fingers get yellow, your teeth, coughing up mucus etc.
You can do it if you put your foot down.