I quit cold turkey 19 months ago myself after 20 plus years of smoking my brains out.
If you smoke, quit.
After the first 48-72 hours it gets easier, everyday will be better than the last.
I can't believe I ever smoked now, I think it's so nasty.
My tips would be to quit cold turkey, and stop doing the things that triggered smoking, for me this meant no drinking alcohol, staying away from bars, not hanging out with smokers etc....
I didn't have an alcoholic beverage for the first 4 months and the first time I did I slipped up and smoked a cigarette, but I stomped it out and said "F" this, and never went back.