How can I deal with an abusive mother when I have come to her home to heal?

I have been at my mother’s home for one week and feel the life is being drained from me at a time when I desperately need comfort. I have been through terrible ordeals: vicious divorce, physical attack from an employer…but these things are of no interest to her. What can I change in MYSELF or what kind of conversation can I have with her to improve things? I am stuck in the country without even access to her car. Thank you.