My mom said it to me frequently before I cut her out, which is a pretty good indication it’s not normal. A therapist would tell you that’s a reflection of her issues; if she had a different kid instead of you she would have said the same thing to them. You, as a person, don’t really factor into why she feels that way.

As for your feelings, let me know what you come up with. I’m in the same boat emotionally and I don’t see a way out either.