If you could go back in time, how would you plan your schooldays?

First of all, time can't go back. Suppose time can go back to my school days. My accountant plans to lay a good foundation, mainly math, from the first grade, because I haven't done well in math since the fifth grade, so I shouldn't have laid a good foundation at first. If I can go back in time, I will study mathematics with my heart, arrange reasonable time for myself, and ask teachers and classmates if I don't understand. I will arrange tasks for myself every day without wasting any time. When I was at school, I just didn't cherish time and wasted a good time.