It can be done. I was one of them drunks.
Then about 17 years ago I got sober, with the help of a power greater than myself. Have not drank since then. I could not do it alone. I tried to quit drinking often, with little success. I had to get help. I found it through AA. They gave me the support I needed to stop drinking and get my chit together.
I have an addictive personality. And do excess in many other areas, poker, porn.......
But if you take all the spots off a leopard what do yo have?