That is a really long period of time. Did you try vaping? You can regulate the amount of nicotine in it.
This is an alternative for those who want to quit smoking cigarettes but this ain't different from the activity. It's going to be hard for real for those who are pushing to quit smoking.
But just try to practice limiting it per day and reducing the number you smoke until you to get to the lowest to zero. A gradual process could do the thing and help you get out of it.