I need to stop being so rude to my sister. I love her very much but sometimes its hard for me to control my anger. I'm trying my best to tell her something thats best for her. I'm just not allowed to tell her things that she wouldn't want to hear or im not allowed to argue with her because she is helping me with something that is the biggest deal in the family. I'm still her sister tho. Her little sister and shes the oldest. I only tell her whats best because I'm trying to be there for her and you'll never know she should be lucky because she has a little sister to give her advice in case if the day comes when she has kids to take care of.