You've made it to day 3 - keep going! On day 19 here and I can tell you, it gets so much better. The first week is hard, and I had the same problems...sweats at first and then unable to sleep, but don't give up, you'll get through it and soon be able to sleep through the night. Also, 3/4 of a bottle of wine will seem like a different amount to everyone. It used to never seem like much to me...but then again a full bottle was never enough....Soon 2 bottles seemed like a normal amount. I know now that was my addiction rationalizing my drinking.
Like, Mentium said, this feeling you are experiencing is temporary and will pass
You can do this! One day at a time