I'd get a daily planner, I got a 2014/2015 one that started in March 2014 and goes through this September that I love with time delineated from 7:00 a.m. to 7:30 p.m. I don't necessarily use the time slots, just write anywhere on the day and keep track of my appointments, numbers I want to keep track of (weight, pedometer steps, blood pressure and other health readings to tell my doctor whom I see every 3 months) and things I'm thinking/doing or want to be reminded of in the future. I'd think it would be handy for school to record when assignments/papers are due or tests, etc.

Or, alternatively, when I was in uni last (2001-2007) I would buy a hardback large "artist's" blank book and just use it as a journal. I kept it open beside me as I worked and jotted things/references and ideas and plotted papers, etc. as well as keeping track of my regular daily life.

Since you live at home, do you have your transportation sorted, when you'll buy gas for your car if you're driving between school and home and how to pay for it or how to quickly buy bus tickets, etc.? I was taking a course with a friend and she drove us but I was disruptive a couple times and talked her into not going to class. If you are sharing transportation figuring out emergencies and how things will work if you're sick, etc. so you don't have to "think" about it and be surprised by problems is a good idea.