Can I ask my mother to stay out of my life?
Why do you feel that way? What did she do?
I'm feeling I need to take care of my own life. She is not doing much apart from criticizing and bully me.
It is good to set boundaries with people who bully you. It might help her work on her onw issues and you can move on in life without the burden of her.
Better now than never. Maybe we can talk again when she's not a mean bitch.
It is good to set boundaries on what your family can and can't speak about with you, and how they can speak to you. Just because they are your family doesn't mean that they can say or do whatever they want to you and it is good to have that conversation with them.