Ok..
First, having a metaphorical gun-to-the-head as motivator is the first step.
check.
Second,
nicotine replacement doubles your likelihood of quitting. Patches, e-cigarettes, and
chantix are examples.
Third, is working on the addiction itself. Setting quit date and telling the family when you are quitting. Then working on the triggers. Without the nicotine replacement the physical craving is pretty intense. With the psychological triggers here are some ideas.
Everytime something/some location triggers wanting a cigarette AND YOU DON'T, put a sticker onto the trigger. You become surrounded by reminders of successes.
Alternatively, Everytime you have a trigger picture what happens if you smoke (right then), picture how you feel about it an hour later, picture dying from the cigarettes in the near future.
THEN picture how you feel NOT
smoking in 5 min, an hour, a day, and 10 years later.
Repeat the pictures 5-10 times the next 5-10 times you have a trigger and the pictures will tend to pop up on their own automatically and.. you've over-written your triggers. Easiest on food (don't eat anything at all until you've had 10 triggers... takes a few hours certainly under one day), pretty easy on
heroin, a bit hard with cigarettes.