Those who know you, close friends and family, already know you have a drinking problem. Your uncle recently died from alcoholism? They know.
They will be relieved that you will probably outlive them all by committing this death defying act of choosing sobriety. I bet your Ma will cry with relief when she learns. Mine did. Burying a brother is hard, but it is a cakewalk compared to burying a child.
For this to work, you might have to change your language from 'try' to 'do'. You know, the Yoda thing. 'Trying sobriety' didn't do it for me. I needed to make my deepest commitment to sobriety. Solid.