A study timetable means that you’re keeping up-to-date with the topics you’re studying in class, staying on top of homework and assessments, and gradually increasingly your knowledge base.
Remember nothing is set in stone, but do try to follow your timetable as closely as you can. Reassess if it’s not working for you, and draw up a new schedule.
Do a different set-up for during school terms and holidays when your schedule changes for a period of time.