I understand why Helena is in a tight spot but I don't get why she doesn't act up against ...

I understand why Helena is in a tight spot but I don't get why she doesn't act up against the prince. Like, tell the jerk that u need&want to do your work as a maid. Tell him his scolding others for u is putting u in a tight spot and causing problems
I guess its because of her mom's teachings that she is acting like that but how old are u ffs start having ur own thoughts. it's not like prince is gonna kill u or anything for speaking up. i don't get why she tries so hard to put up an act when no one is threatening her life or anything