GZ, there is wanting to quit and then there is wanting to quit. Lots of people believe you have to reach your bottom to really want to quit. (I have really short arms so that was not an option for me)
It is difficult to imagine what change means before you actually get there. Talk to someone about living without a car, or a TV, or a computer, or drinking, and if those things are dear to them, they cannot envision what life would be like without them. Billions and billions of people have lived rich fulfilling lives without any of those things. GZ life is very short, and it is the most excellent adventure you can have. You can live it, or watch through the bottom of a glass. I don't think that you will reach the end of your life wishing you had drank more.