Sobriety is like driving at a high rate of speed and slamming on the brakes. All that stuff in the backseat comes flying forward. It takes time to deal with this wreackage and can only be done with time.
Staying sober and working on recovery is the only way to start making amends. There are programs for those we hurt so they may work through resentments we caused. Al-anon is one I have experience with and can be healing.
Changing is the best apology. However, some may not want to. “Let us up off the floor “ Only you can determine if this is the case - over time.
You don’t have to drink AT him.