The creator of Alcoholics Anonymous actually swore by flush niacin as a treatment, you might look into that. I really like it before sleep, crazy dream enhancement. Key thing is to just eat low carb style for five hours after you take it. Sublingual pregnenolone (for GABA), naltrexone, activated charcoal (take in the evening away from anything else to bind toxins from bile) might also be good ideas, off the top of my head. Magnesium is good for GABA too but too much lowers dopamine. Benfotiamine/sulbutiamine is another b vitamin thats restorative after drinking. Finally Skullcap herb is good for anxiety and brain health, but reliably causes bad nightmares somehow if you combine it with drinking. So its a good way to make it impossible to drink hah.
One free thing is sunlight/grounding, theyre great for mental health.