I'm going to scold my grandmother for not taking her medication properly
Why would you scold your grandmother for that?
I want her to stay alive longer and take care of her self.
You should be nice to your grandma and take care of her without yelling. She might not know the proper way to take the medication and you can explain it for her.
I'm not listening to you anymore.
Sorry, I just don't want you to scare her about it is all. You should just have an honest conversation about it.