Yes you do have a choice, live or die. Right now you are scared because of the doc, many of us here have been there. Nicotine doesn't give up that easy. I've seen people dip with their jaw half gone. As soon as you are feeling better you will be humping that can again. UNLESS you want to quit, and from what I just read, I don't think you do.
However, this place is the right place if you do WANT to quit. We can help you win, but you have to bring the fighting attitude. So, which is it?