It sounds like your mother lacks self awareness. This is what she is saying about herself every time you try to set a boundary and tell her to stop.

Bill has some good advice, it’s time for you to make the change in yourself because she clearly is not going to change as that takes a desire to become more self aware. Her inability is causing you to develop some passive aggressive behavior patterns. The good thing about you is your desire to be more self aware and wanting to learn better ways to deal with not just your mother, but others who behave like her.