We must learn our lesson.
If your roommate doesn't study in the dormitory, don't stay in the dormitory.
Have a time plan every day, and you'd better make a weekly plan for yourself, and add it when you have something.
Studying hard and getting high marks in college is sometimes different from learning something and studying hard.
For example, I just don't study the hardest. I paid a sorry score, but I was worthy of the ranking and the teacher gave me face. Sitting in the front row
Don't give up the good habit of memorizing words and reading the secretary's diary in high school.
Don't give up your hobby.