Lately I’ve heard some version of the following: write the book about you and your mother; spend time praying for people; whenever you find yourself thinking or saying negative thoughts, let them go.
There are others, but these seem to be the one’s God wants me to work on right now. It is pretty clear that God is not suggesting that I become involved in any kind of he-said-she-said. Rather, it seems that I’m supposed to be rather quiet.
I suggest you try this little prayer and see what God sends you.