Explain to her in a nice and diplomatic way that this is wrong and she must get rid of them. You must not obey her in wearing it even if she curses you as her cursing has no value or impact.

Kindly refer to the following link(s):

https://islamqa.info/en/10543

sheikh actually my mother wears a locket in which it is written some words of Quran n some other language which I can’t understand a person gave that to my mother that it will protect her from black magic n jin so now my mother wears them n forces me n my brother to wear them so what should I do I already told her that believe in Allah not in these taveez or lockets but she gives me bad duas