Well, what I wish I had known is that it really won’t matter that much over the long term. School is just not as important as we think it is at that age. It’s important, but it’s not worth having a nervous breakdown over, except if you parents are on your case, too.
The thing is, if you don’t care so much, you relax, and if you relax, you do better.
I was always a good test taker. So I relied on last minute cramming, but I also always got sleep. Turns out the sleep part is very important. I did pretty well in most cases.
Make no mistake. I wanted A’s. But a B+ was ok, too. Besides which, many of these tests are only one part of the grade. Depends on the course, of course.