I read "your story", and had to say I am sorry about your mom. I don't blame you one bit though for still grieving, and yes I am sure you always will. I pray for you that one day it will seem easier to "accept", if that is the right words. I am going through this cancer thing right now with my dad, and I know what you mean, seems our lives have changed since he was first diagnosed. I always worry about him.
As for you, just pray that the Lord will give you some peace. You have to be strong for your children. I think you are an awesome daughter for being there, and I know your mom must be smiling down at you saying..." thats my daughter!"
I will keep you in my prayers!