Welcome to SR Dibbis, you've come to a good place where you will find lots of support.
You sound like a wonderful sister, and I'm sure he loves you very much. The thing is, there is nothing you can do to help him or save him, except say a prayer each day for him.
Anything more than that has to come from him. Only he can decide whether to continue drinking or to quit, and nothing you do can make that happen any faster.
Take a read around, especially the "sticky" posts at the top of this forum, and you will find a lot of good information that may help you.
My prayers go out for you and for him, that he will find a better path soon.
Hugs
Ann