It all depends on you! What are you comfortable with? Are you a morning person or an evening person? ... During my under graduate I used to put my lectures into several days to have the other days of the week free for projects, assignments, and errands. To be successful in college/university you need to take notes during your lectures, review these notes within the same day, do your readings/assigned practice problems, and plan for your projects/assignments/exams. Moreover, have a social life and good diet.