Friday was also my party day: for 25 years. Then for the last 10 years when my drinking became chronic, Friday was the start of a weekend long binge that usually lasted until Monday or Tuesday, if I was lucky I could stop it there. I wasn't always lucky!
Now I go to a meeting every Friday night.
You don't have to go to a meeting but why not have some new activity on Friday nights that you've never had before?
Gym, a run, a walk, a movie with friends, eat out at a restaurant that doesn't serve alcohol, etc, etc.