Stopping drinking is no guarantee for a good life, but continuing to drink will guarantee a bad one.
I couldn't stop drinking by myself; AA helped me. I followed their suggestions and in time my life definitely got better, much more than I even expected. Of course, I still had problems and crises (from day-to-day stress to deaths of loved ones) to deal with, but they mostly weren't of my own making anymore and I was better equipped to deal with them.