Is she staying with you?

I guess ur mom is still young in her late 50s or early 60s. Fighting won't solve the problem. What if you tell your mom - mom, let'discuss about our relationship on Friday night for one hour. Other than that, I have more important things to do. In that one hour, you will just let her talk, as much as she likes, don't fight back, don't defend yourself, just listen in your normal mood. Keep doing it for weeks, see whether she still picks on u.