The first two are the nonsense reasons but the third, the way smoking rules your life, schedules and plans is THE reason that people should concentrate on to quit.

I haven't managed to quit, I can't remember half a dozen times in the last almost 40 years I have gone 24 hours without a cig.

All I can do is offer you my best wishes for success. So difficult but I ask one thing. When you sucedd, please don't become one of 'those' ex smokers please :-)