Years ago, I lived through conscious bitching from my Mother in law and one day, I just exploded and told her what a useless excuse of a woman she was!
you hubby needs to handle it if you want it to stop!!!!!
Just say "Oh! Really!" each and every time she offends you. She'll give up after a while.
you clearly need more practice
Move farther away.
Shut up you *****.I am NOT listening to your toxic bullshit any longer.
But maybe your husband cannot stand up to her either.
stay away from her
Are you by any chance an Indian? Indians usually have that kind of a culture of taking care of parents. I suggest, stand up for yourself when it gets too much.