Welcome to SR rigger. Your efforts are very kind and well intended but as many have mentioned already, there is really very little you can do to help her until she wants to get help. Addiction is a very selfish affliction and for the addict, nothing is more important than protecting their ability to keep drinking, smoking or whatever they do. It is not logical in any sense.
That's not to say that there is no hope, but she will need to initiate the change. And you do need to take care of yourself and prepare yourself for the possibility that she may never quit. There are support groups for family of alcoholics and we do have a family forum here too if you'd like to meet some others who have been through the same issue.