Hi there,
As an alcoholic, I was never able to quit for my wife, for our daughter, or for financial reasons...I was only able to stop when I wanted to from the depths of my core,
for myself.
There will be other people along shortly (although its a bit slow here on SR during the weekends) who will be better able to help you than I can. For now, here's the forum for friends and families of substance abusers.
Friends and Family of Substance Abusers - SoberRecovery : Alcoholism Drug Addiction Help and Information
Congratulations in reaching out...you are far from being alone in this!
Murray