I dont know when this was posted but i am in 2019 and i'm 16 currently and my older sister is 21. I can so relate to this as a matter of fact i was searching google to find others who may suffer with what i deal with and i found ur post. I live with my parents and her my elder brother moved out noone but me in my family wants anything to do with him.My sister has always been hateful since i was young she is incredibly selfish when my brought me home from the hospital she said 'I asked for a puppy not her', i also have a little sister now as well who is 4 yrs and when my mom was pregnant she made horrible remarks telling her 'Alluyh done ready poor and want to bring a next child in this chaos'. My dad is the only one that works and has trouble making ends meet and he made sure to give her a good education so she cud help us out of poverty. She has a job now so he no longer borrows money because he has a daughter who can help him. After a month in that job, she is now selfish with her money. She hides her money is another bank account and my parents are now afraid to say anything to her and she does as she pleases. She knows that we rely on her for money and she takes advantage of that. Before she would say how she is selfish with her money because she gives them money but she is not allowed to go out freely. Now she has the opportunity to go out, and she is even worse her ego has expanded even more, she is the only one to go out with friends in the house not even my parents. And she feels superior because of that.She makes my life a living hell, she feels she can say whatever she want to me and the one time i say some she reply 'U forget i is the one that does give you money for school' with a smirk on her face. My mother hears everything she tells me and also says nun, she tells my mom whatever she pleases because she knows she can say **** to her and she will do nun, she always like to make fun of my litter sister because she cant talk as yet. Recently i said to her 'She can talk you idot' cuz i go so fed up of how nobody tells her anything and she replied saying 'Why you have to be like a jack in the box' and then mommy said 'Why u must tell she dat' in a calm tone and she replied 'If i go to cuss she lil *****in ass out u (my mother) will behave like a lil ****'. My mother then told me i was wrong FOR STANDING UP FOR MY OWN SISTER.I wish they cud put her out but sadly my father needs her money and my mom says she not putting out any of her children which i believe which is doing bad rather than good by showing her that u are desperate her ego expands more because she knows she can behave as she pleases and u will have no choice but to take it.I NEED her to move out because the situation gives me anxiety 24/7 i am not able to focus on my school work because i am always worried for my family. I have a major exam to write and i have to start studying but this situation at home is too much. I also have to deal with teachers at school comparing me to her and my peers who tell me my anxiety is not a real thing and dosent believe how horribly my life is. My mom also is afraid to hit my sister because of all the fights she has gotten into with her and plus my sister is way bigger than my mom. Because of this she takes out double of her anger on me to compensate for not being able to control my sister.I dont know how much of this i can take i will stab her one of these days because that is the only way my problem can be solved