Is your mother able to afford/willing to consider an assisted living facility? some of them will allow people to stay for a month or so to see how it works out.

What about moving your mother in with you? Or look into getting some outside help to stay with your mom?

Taking care of your mother to the point of risking your own health and well-being won't be good for either of you. I hope you find an arrangement that works for both of you.