It's also very important to note alcohol is one of the very few chemicals where withdraw can actually kill you. If you currently drink heavy and are thinking of quitting cold turkey or cutting it out from your day entirely definitely consult a doctor first.

I agree. Until you deal with the root issue, you're only going to replace one addiction with another (beer for weed). Why be addicted to anything, or what's the fundemental cause of your dependence on substance? That's the real question you need to answer.