you know no one is perfect and if any body say that she /he is perfect then they are wrong because they never judge their weakness or mistakes . for example if someone is a star or a singer or good at singing it doesn't mean he or she is also a sports champion or a good artist . it means every body is natural and have different abilities . so dont follow any one just explore your self and your abilities because you are not useless even a thrown paper was also used . so i mean if a person is good at something then you so dont be jealous because you also have an ability that she or he dont have . so dont replace your self with any one . if you are not a math champion and your friends are so keep in mind you are a champion of the things that you are good at .