At 60 days of sobriety, my raw emotions are starting

At 60 days of sobriety, my raw emotions are starting to come back and I can't shake this feeling of major guilt and regret for my mother who had 10 of us (8 of my siblings are alcoholics). When my brothers and I would drink, she would get really upset we would call her crazy and make her cry, but now it all seems so clear to me as to why she feels this way. We have been torturing her for the last 15 years as she watches her children slowly kill themselves and she feels powerless to make a difference, which sounds like some version of hades (app won't let me use the other H word). I don't know how to tell her I'm sorry or how I could even make it up to her. I would love to hear about someone else's experience with this situation...