I agree your wife and son don't deserve an active alcoholic that will only cause more and more problems. I'm very glad to read ya seeing this now and not in 15-20 years.
I hope you make getting sober for yourself. Yup, good to do it for your son and wife but its been demonstrated over and over that a person becomes sober when they do it for themself and themself alone. Many times demonstrated on here MANY poeple stopped drinking for this,that, and the other only to end up drunk again and worse off than before.
We can only be so supportive here. There's going to be footwork on your part- changes to be made in thinking and actions. Lots of good sobriety here to offer suggestions so please ask before ya drink. Too many poeple wait til afterwards.
There's also f2f support ya may want to look into. Great thing for me personally. Helped me greatly.