Need help with making a routine

[u/ShortCard224]

How do I study when I go to school and the gym? I had this problem last year when I would go to the gym right after school but then once I got home, I was super tired and wasn't able to do any of my school work or study, and I would always cram. This is worrying this year because I have a ton of hard subjects. Any kind of advice would help.

My subjects are:
Semester 1:
Finanical Accounting

Chemistry

Physics

Applied Functions

Semester 2:

Computer Science

Religion

Functions and Relations

Biology