Jay, I do see some red flags in your post. Stocking up on cases of beer, drinking 12-15 a night, drinking alone, filling up the bins with empties etc....Also, people who can control their drinking don't usually have to make a big effort to do so.
If you do have a real problem, cutting back will only lead you back to drinking more and more. Give quitting for the week a try and be really honest with yourself about the process. And we are all here for you while you are ttrying this. Welcome to SR!