Welcome Dorsey. You've got some great advise already.
I just feel if I do not take control he will self destruct.
You can't control his drinking, nor can you cure it. And you certainly don't cause it with being the "nagging wife" although I bet he tries to make you feel that way. The most loving thing we can do for someone is allow them to hit their rock bottom. This is the only way that they will admit they need help and be ready to receive it. As our friend on SR, nocellphone, says - "If I get between someone and their bottom, I just end up getting crushed".
Get some help for you - al-anon meetings, SR, books. Information is key and there is plenty of it out there.
Good luck
Minnie
xxx