while, there are so many reasons why people that think that, their goals are very hard to achieve, because they have to do a lot of test, in those 4 semesters, homeworks, activities, but, suddenly a problem comes to the person life, which is that he has to work at night, have to take care of his mom, he have to pay rent, food, and it's very difficult to think about it, because in those cases is more problabbly that he leave school, and don't follow his dream of graduated from high school or university and get the job that he was dreaming with.