In that case, you just gotta practice by writing it out. Sucks but it's the only way! Oh and you need your sleep don't need to knock out during the test lol Your welcome :) I know what your feeling absolutely hate it.
You have finals? Then you need all the time you can get! CRAM AS MUCH AS YOU CAN. It's easiest to remember if you actually learn it by relating it to something :) What is it for?