HFA,
I am single as well and I know how hard too much alone time can be. I spent the whole past weekend alone NOT drinking and it was really hard. I know one of my strategies should be to get out - make a real effort to connect with others - stay busy. I think that will help me keep adding days right now. Maybe that could help you as well.
I am right there with you with the smoking thing. Since I have quit drinking I have been smoking like a fiend. I absolutely hate it, but plan to work on that next - just feel like if I gave that up right now too I would definitely lose what's left of my mind.
Hope you sleep well - when you wake - it is day 2.