As opposed to simply transcribing verbatim, re-framing the information into your own words while writing out physically links to better performance on tests.
Don't just passively read over your notes or slides – use them to create quizzes for yourself, or challenge yourself to sit down and write out a summary of what you've learned from memory.
Number one, if you're prone to test anxiety, then the first thing you're gonna want to do is pull out a piece of paper and write out the specific things that are worrying you.