I would also add that quitting smoking was one of the hardest things I have ever done. Just don't start. Some people don't have a problem quitting. I did.
My doctor was a real motivator, and yet never laid a guilt trip.
Ultimately, taking some time off and feeling as terrible as I needed for few days really made a difference. Not everyone can make that time. I will say that after the first week it was mainly habits and the waning cravings but the best part is that:
It gets easier and easier and easier and then you forget you ever did.
- 7 years without a stoge.