Welcome ForMyGirls,
I have two sisters....so was raised in a family of three girls. We all idolized my Dad. He was an alcoholic and gave it up in 1974 when I was a junior in high school. I wish he had given it up sooner, like you are doing for your girls.
Given the amount you've been drinking, you might feel restless, irritable etc. does your wife know you're not drinking? If she knows, it might make things easier on you. The first 3 - 7 days were the hardest for me. I changed up my routine and kept busy. I too read a lot on this site - a true God send!
Seeing your doctor is a good idea. You're making some important changes - keep posting!