You did the right thing by going no contact.
There is a book I read, I think by sister Renee pitelli, about breaking the bonds to an abusive family. It looked at no contact from a biblical centered view and it really helped me so much.
I remember one part where it talked about how even God walks away from those whose hearts are hardened...and if even the Holy Spirit can't heal these abusive narcissists, how can we think we can?
And it really helped me a lot. It's really easy to find the book on line.
I've been rereading it lately and it's strengthening my resolve.