Take an afternoon and set up the calendar on your phone or computer with your course and work schedule, important deadlines, and meetings or appointments you know about.
As you set the calendar up, make sure you check your “Reminder” settings so that things don’t catch you by surprise.
Schedule 10-15 minutes at the beginning of every week to update your calendar with anything new; try to add new stuff as it comes up during the week.
If you prefer the printed page, invest in a good organizer or check out these FREE online, printable calendars.