Many people today assume many things that are not necessarily Biblical; for example, they assume that you will not get along with your brothers and sisters. They expect that the natural thing for children living under the same roof to do, is to fight all day.
However, I want you to know that fighting and not getting along well is not what God expects from you. God expects from you a loving relationship with your siblings. He is sovereign and He has chosen every one in our family with a purpose. He knew you needed a Mom such as the one who cooks you breakfast all days, and a Dad just as the one who kisses you good-night every night; but God also knew you needed the brothers and sisters you have.