Brittany- As a former alcoholic I can tell you, that if that person doesn't want to get better, you're trying in vain.
You can commit him for thousand and thousand of time in rehab...They won't do him any good if he's not convinced that he's doing something wrong that will, finally, destroy him.
My advice is to try your best in showing him that he’s' doomed unless he does something- if he can't be persuaded, leave him dear girl.
You deserve to have a normal life, you deserve better things!