GROWING UP IN A BIG FAMILY

I grew up in a big family and its not always easy having brothers and sisters that want everything you have. Growing up with a big family means you always have protection but at the same time you always have people that need your help because i am 18 years of age when my sister gets bullied at school i can unfortunately do nothing about it and she comes home crying everyday and i feel bad because i cant do anything about it. i want to help her get out of bullying but i can not do anything about it she tells her teachers but they also do nothing to the bullies they just say to her to stay away from the bullies but that never works they follow her all the way home and just bully her all the way home and then bully her at home aswell