Good luck. Nicotine is a damned evil slave master.
I take my nicotine cold but still the same monkey.
I've "quit" twice, longest was for 18+ months, still not sure if the 60 pounds I packed on was worth it, took me 2½ years to shed most of that.
I keep hoping I can get my wife to give up the cigarettes, she has a family history of Emphysema, COPD, her father, grandfather and an uncle died from emphysema, and a personal relationship with heart disease, (heart attack at 44 years old, open heart surgery, double bypass and a follow up bi-femoral bypass) cardiovascular disease and still she smokes 11 years later. I really don't have much expectations of her making it to 65.