Hang in there, Sohard.
Each day it gets a bit easier.
I found that my attitude was less black about the not drinking thing when I began to sleep better, about 10 days into sobriety.
The toughest thing for me was accepting that I just couldn’t drink like other people, and that took some time.
You will get past this, and come to find new things to do to fill all that new free time you have.
Good luck and good thoughts.