Hi Will. A Plan is most useful for attaining sobriety, not for moderating drinking. For us alcoholics, we simply can't control how much booze we consume. I suspect that since you're posting on a recovery site, you might already be thinking that you have a serious problem.
So to answer your question, yes a Plan will help you get and stay sober. When you eliminate alcohol from your life, you'll automatically limit the number of problems that you'll need to manage.
Stick around and read SR. Lots of good advice here.