Time's up

The school dominates much time in the life of students, especially those who are in high school where they are on the way and prepare to join vestibular and for universities. This is my first year as a high school student and I'm realizing how difficult and tiring, many activities, books and subject to study. I try to manage my time, separate the time of fun and the time of the study, but most often the school takes part of my day and at the end I'm already tired for fun.