Have you commited to your Big Plan yet?
If yes it's a matter of re-inforcing to yourself who is ultimately in charge of your actions. Try the exercise where you hold your hand in front of your face and demand to your Beast that it move your fingers, it can't because you are in charge of your physical body. Your Beast cannot drink, it can only try to convince YOU to get it it's precious stuff. The beast is like a head with no body only a voice. If it wants alcohol it can scream, but ultimately needs you to get it.
Too bad you don't drink, poor beast.
Read the passages on shifting and put that into practice.
Another important thing is to realize the I/IT split. When you can recognize the beast voice is not yours, it becomes easier to control and unltimately ignore.Your beast is part of you, but it is NOT you and YOU alone control your actions.