Everyone in college must feel more relaxed than in high school. In our opinion, self-study at 6:45 is unnecessary, and it is a painful thing for us college students. However, going to bed early and getting up early can not only ensure adequate sleep, but also make us more awake in class during the day. Self-study in the morning can help us remember the knowledge points in the few study hours in the university and ensure that we will not fail the course at the end of the term. Besides, universities can help us learn more knowledge. If you need to take the postgraduate entrance examination, self-study at 6:45 in the morning is a way to make yourself self-disciplined, which can not only make yourself self-disciplined, but also improve the quality of the knowledge you have learned. So there is no harm in self-study at 6: 45 in the morning. On the contrary, it may reduce our failure rate and make us more self-disciplined and learn more.