Thank you both for the gentle advice and reminders. This past week, I did put a boundary up with my Mom.
My sponsor reminded me to take my power back and to let my Mom know I didn't want to hear her speak ill about my Dad or complain about a brother of mine who hasn't cut the apron string yet, should she bring up either topic again.
I'm sorry you both had to deal with similar situations and so grateful that you shared exactly what I needed to hear.