Hi there!
Using a planner can also help you organize each class you are currently enrolled in. For example, keep track of important test, midterm and final exam dates for each class. If your math exam is approaching first, try spending your time focusing on that exam rather than trying to study for several exams at once (if you can). Knowing exactly how much time you have before each exam will help you designate study sessions and reduce the possibility of stress by "cramming". Also, try to use your study planner everyday. This will create a habit for you that will also strengthen your organization skills and calendar management. If you need additional tips or a study session please feel free to contact me for a lesson. Thank you and I wish you all the best in your studies! Aisha