I can relate to that very well, my mind is a yo-yo too.
I drank mostly at home too, then I didn't have to worry about how smashed I got. It was too hard to drink in public and keep it under control.
I've only got 6 days sober. This weekend I've been keeping very busy so I'm not sitting home doing nothing, thinking about drinking. I can't hang out with most of my friends because they drink so I've been doing things around the house and going for walks, anything to keep busy.
Spend a lot of time on here to occupy your mind, it really helps.