Everybody checks the grade. The ones who get better check the wrong answers.

A score tells you how it went and nothing about why. All the useful information is sitting in the questions you missed, which is also the part nobody wants to look at, because looking means sitting with being wrong for a few minutes. That is the whole trade. A small amount of discomfort now, in exchange for not making the same mistake in June.

When the next paper comes back, spend ten minutes on the red marks before you file it away. Sort them into two piles: things you did not know, and things you knew but rushed. Those two need completely different fixes.