I quit 16 yrs ago this time of year when in college. I made rules to always smoke outside, when in college don't go get my jacket for a quick smoke outside which turned to always, and buy the poverty packs (15 smokes) after I worked my way down to 1/2 pack a day. Then made a rule to only smoke 1/2 a poverty pack a day. Then one day while outside freezing my bic I realized how much of a fool I thought I was. Paying more money for less smokes, freezing my bic, these silly rules, yellow fingers and teeth and threw the pack in the garbage and the extra 2 packs at home and swore to not waste anymore money or time or restart. It was tough and not my first time quiting.
If you really want to quit, you'll figure it out for yourself and do it. Best of luck. You'll be happier because of it.