unfortunately there is not much of anything you can do to make him stop. One approach you could take is to let him know that you will not support his drinking anymore and you will no longer be with him if he continues to drink. You must however follow through with this if he does continue to drink. This is what my wife did to me and it shocked me into staying sober. Once I realized she was no longer in my life, it really made me get my priorities straight. There is a chance this won't work, and if it doesn't I believe you will be better off because of it. I'm sure his alcoholism has really kept you from enjoying your life lately.