Depending on your major, it could be all as planned.
For example, certain programs are deliberately stressful by design. Certain classes are meant to mentally put you through the ringer as a "test". Sometimes midterms are deliberately BS as an attempt to hurt your grade to further push this. (I've had a professor admit to doing this before).
"Well, thanks to the Internet, I'm now bored with sex."
- Philip J. Fry