Everyday is a new day and it brings new joy and new challenges. Everything happens for a reason, things happen so that we can learn from them, not to make us suffer. When you go to school, every day there is a new lesson but during the breaks you can have fun too. Then you get holidays too and then you have exams too. Same way, in this life, every day you meet different people to learn different lessons. Now when you goto school, you do not have a choice after you have chosen the class and you cannot sit directly in senior secondary, you need to pass through classes before this. You can aspire to become whatever you want to but you need to learn your lessons for that and do all the hard work which is required to become that. Same way our soul learns the lessons, chooses the class and then it does not have a choice on how the lessons are taught, its in the hands of the teacher, how to learn depends on us. So a students role is not to complain about the lessons but to be thankful that he is getting a chance to learn the lessons, someone has taken enough pain to design that school and course curriculum and accept everything. Be kind and loving for the efforts which have been put into him to cultivate him as a better individual. Always be loving and thankful for everything you get instead of being judgemental.