Good for you!
Only on day 4 here, but I have definitely noticed my productivity has increased. My energy level is still somewhat low b/c I'm having a lot of trouble getting to sleep at night, but I'm hoping that will pass soon. I work a late 2nd shift type schedule and when I get off work, I go home to a house where everyone is asleep - prime environment for me to sit and drink and have nobody to count how many. This is one of the biggest factors I think that led me to drinking way too much on a nightly basis.
I'm looking forward to the weeks and months ahead and hoping to get projects completed like you have and hopefully take on a new hobby or two. Anything to keep my mind off of sitting around drinking!