Want a way to plan and finish your assignment a day early? Plan backwards! Start with the due date - check your course outline or assignment description for your's. Then, find out what you need to accomplish to get it done. Writing a paper? You'll need to figure out your topic, do some research, write it, edit it, and hand it in. Have a midterm? What will be on it?
The key to this planning is to start now!
Once you know when your assignment or task is due and broken it down into smaller, manageable chunks, schedule it in your calendar. Take it piece by piece and you'll be less stressed!