Mil you can’t stand

How do you deal with a mil you cannot stand. My mil has disrespected me so much I seriously can’t stand the thought of having to be around her my whole life. She bugs me and my husband to see my son but the thing is seeing her once a week is too much for me. Everytime she is coming over or we go over I have horrible anxiety that I can’t control. I have cried so many times because of her. How do I deal with this or how do I set up boundaries where she doesn’t text me every week asking when she could see us? Thanks in advance.