Seasons Change, I could relate to your mother telling you that you are "just like her"...Mine would ask me, "Do you know why we don't get along?" I always fell for it since I was a kid and she would answer, "Because we are so alike." It still strikes fear in my heart, 30 years later!
I agree with Sunshine, there's no way you will ever be like her, because narcs don't worry about who they are hurting/how they are acting, and that's all you are doing right now.
The longer you are away from the abuse the stronger you will be. I never responded to her. Nothing. I started to listen to my body; when it recoiled from the phone, I didn't answer! It is hard, but it gets easier. She sent me gifts for years, and I got to the point where I never responded. She sent them for about 2 years and then she stopped. (As I mentioned in the 'Gifts' thread, she then let everyone know that I wasn't responding and what a terrible person I was for not thanking her or sending gifts in kind.
A note about therapists: I have had some doozies who knew nothing. There were some that did more damage to me than good. Typically, the bad ones would say something like "If you don't heal this relationship with your mother, you will never be able to have a healthy relationship!" So then I would embark on trying to "help" my mom get better. Horrible. So, Sunshine, you could be much better off doing your own research! Sounds like its worked!