Sounded more like she did more of the same and so did you. You already told her before you were changing. Don't keep validating her. I don't know if you noticed it or not, but just when you think you've become more assertive, she kicks it up a notch and insults you even more. The goal is to be assertive and proud of yourself and to have enough self-esteem to stop her from spewing even before she starts.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.