You can do it.
I quit smoking in 1989, after twelve years of burning unfiltered cigarettes ... Camels, PallMalls and Lucky Strikes ... and I don't miss them a bit. It's been nineteen years, and I'm glad it has!
Like others have said, you'll wonder why you waited so long. You'll wonder why you ever did it at all!
You keep up the good work. Pray for help!
We're on your side!