Just take it one day at a time. I had to quit drinking and smoking but I didn't do it all at once. I can't tell you which was worse, though. They were both hard to do. Sometimes I still get the urge to light up but I just think about how bad it will taste and how bad it will make me feel and that usually helps a lot. That and I do the old Kojack trick, I have a good supply of lollipops around. It helps...