I remember when I finally got caught being the bad one of me and my older sister. My mother finally realized I was human, I think, and not some perfect angel, which I never was. I got the silent treatment for months and only got attention as I was driven to my community service. You have no idea what its like to have your sister get all the attention because she is always doing bad things and have your parents ignore you completely because you don't need any guidance, or love. My mother was ordered by my p.o. to spend time with me every week and she lied about doing so. I never complained because I didn't want her just filling some empty order. Maybe you should find your sister's point of view about all these happenings.