Wants to be there for Grandkids

I not effectively quit smoking, however i am in the process with using a certain type of medication, they say within three weeks of using the medication that you will no longer hunger for the taste of the tobacco. My motivation is that i have two children and that i would like to know that i will make it to see them graduate and proceed into the future to see my grandchildren some day. I have quit before for the total of a year but for some reason I eventually picked the habit up again.