Things you've learned:
Have instructors look over you papers, because then you can see firsthand what is expected of you
When you don't understand something, ask the source, not your friends
Study is small doses, so you won't have to cram (especially before or after class)
Sleep well the night before a test. On the day of the tests, eat all your meals (especially breakfast) and stay hydrated
Even if you have been studying regularly, step it up a week or 3 days before the test, depending on how hard you have to work to do well in the particular subject
Find out what works for you, in terms of studying and stick to it
Be open to changing your study habits, because you may just find something that works better for you
Don't compare your high school standards, in terms of grades to college standards, which aren't always the same
When you like whatever you are studying, it makes things 20X easier
Stick to first impressions when it comes to deciding if you like the instructor, or if you should change instructors
Never do a once over of your answers, unless it's to see if you've skipped any questions