Wow that is a shame. She is not respecting you when she calls you names and belittles you. Just today I asked my son to do a task and a few minutes later he said thank you, mom, for asking me nicely rather than being hostile like Aunt ----.

Can you even have a conversation with your mom? Is she open to feedback? What would happen if you told her you would like for her to speak differently to you?

I bet she doesn't understand that you are willing to do things if she asks nicely but you aren't when she is mean. By the way I feel you have absolutely every right to feel angry but how you express your anger can make a difference.