Don't forget you can talk to her and explain why you think what she's doing is not good and how it makes you and other people feel about it.

Your reasoning is probably not obvious to her and if you expect she just "takes your word for it" maybe you're being too harsh. Listening to her own reasons to disagree would be a great experience to learn more about her.

Most parents don't know anything about their child because that's all they see - "my kid who has to grow up". This is how my mother treats me to this day. The pile of grudges I carry is burdening. After nearly three decades, I've began to hate her.

Be a good mother by being a whole person, under constant development, and treating her as another whole person, under constant development.