Hi Bob,
First of all 19 or 20 days is awfull! The worst is behind you.
I was also where you was. It will get better. Concentrate on the next hour. After that on tomorrow.
Do you take care of your blood sugar?
Concentrate on today:
What helped me a lot was reading about our killer friend the cigarette:
And don't take that puff it will get better step by step PROMISE.
Hannes (Free from nicotine for 44 days. You are only 24 days behind me and I promise you it will get better)