My big sister moved in?

Question

well my sis is kind of a problem child. and she lived with my grandma for her whole life. and my aunt and my sis got into it.and so my mom went and got my sister and now she is living with us.but the thing is that i didn't even know it. because last night i wasn't home.and that's when it all happened. so when i came home and saw her there i was in shock. and now she is trying to take over our house hold. (example) she thinks just because she has a baby that she is going to get my room instead of the smaller room.and that's not fair.because this is the first time i got a whole bed room set instead of just a bed and a dresser. i got a whole set.its not that I'm being a brat but in her old house she had a room that was the same size as the room i want her to have. so she should be use to a small room. please help me , what should i do to make her stop trying to take over.please don't be mean when answering because i really need help. by the way I'm 13 and my sister is 15

Answer 1

let your parents handle the situation not let yourself.

Answer 2

Get everyone in the house together to talk about it.