Just wanted to suggest a few books we found helpful. Hope this is ok.
“The Heart of Addiction” and “Breaking Addiction: A 7 step handbook for breaking any addiction”. Both books by Lance Dodes. He is a Harvard trained MD who has dealt with multiple additions thru his career and I really resonated with what he had to say. My husband and I both have found these books very helpful and they also have sections for friends and family dealing with loved ones with addictions.
Best of luck MLucky me…..