How do I tell an unconvincing & stubborn Mother to STOP it?!?

Presently my family & I are residing with my Mom, it's total hell! My husband & I got away from hardship and trying to get back on our feet. My husband's been at his new job for a week now, planning to move. My Mom just said horrible things to me, I lost my daughter to stillbirth recently & she says I killed it. She doesn't have a clue to what I go through everyday, I'm mentally struggling because it's been a tough experience. My Mother's been verbally abusive to me all my life (I think it's due to her hate for my dad, whom loves her dearly) & physically abusive to me since I was 4 and it stopped when I escaped her house at 19. I love her to death & I don't understand why because the things I've endured. Once we move, I'm going to cut her off permanently, not let her see her granddaughter (my dad's acceptable), I've gotten to a point where I can't do it anymore. Is my behavior too much? She's psychologically killing me! At the moment, I'm getting the silent treatment from her. Help?!