I started smoking in my late teens. Dumb. I did however grow in maturity and when I was 24 I quit. I smoked a pack and a half a day for over 4 years but I realized through maturity that I was killing myself. If you want to quit then do it. If you can't then you have a bigger problem. You are weak minded and will likely have an ample supply of other problems throughout your life which you will undoubtable blame on others. Man up and take control of your life or at least keep your mouth shut if you arent going to be a responsible adult.