When I first quit, I was sad, I was in mourning. It was like a part of me died. In a way, that was true. I didn’t know who I was without alcohol, and that terrified me. I couldn’t really imagine the rest of my life without it, much less a whole year, month or week. I took it one day at a time. If I could just handle one day, I could get a grip of this addiction. Each day that I was sober I worked on actual coping mechanisms. I also changed the way I saw and thought about alcohol, my process is outlined here Change your Relationship with Alcohol
Eventually, it went from “ugh I can’t have it and that makes me sad” to “Yay! I get to live my best life!”.
Its perfectly normal to be terrified of quitting, because you will no longer have that filter. But it’s ok, life sober is better.