Bragi, that was a very courageous thing to do.
Not everybody would have a strength to do the same; I would just like to say, even if you did say all the right things to your mom, unfortunately it does not mean that she will do anything about it.
Are you really ready never to speak with her again?
I am asking because I had the same problem with my father.
I did not confronted him like you did confront your mother, but on many occasions we fought about his drinking problems, and it never led to anything.
He just kept drinking.
This year he died, and we were in a fight at the time. I never had the chance to say goodbye. Even though I know it is not my fault, I am sorry for that.
I guess I am just trying to say that one e-mail will not solve all your problems.
But, I guess you know that already
.
I wish you all the luck and may your mother has the strength to reed your letter with better understanding and maybe do something good with her life.