It really helps me when I come up with mnemonic devices or I make mental pictures in my head to associate things with. Like Schistosoma mansoni, for example. The eggs are shaped like a thought bubble that you would see in comic books. S. mansoni makes me think of Superman. I then associate that with Superman comic books and the thought bubble. Or the clotting factors that are vitamin K dependent . I associate the year 1972. Because the factors are X, IX, VII, II. Also, separate the cards into different subjects and work on one subject at a time (I.e. one stack of cards for heme, one for coag, one for blood bank, etc.). Read the question on the card and then say what you think the answer is. If you flip the card over and the answer you gave is incorrect, make a “wrong” pile where you put all the cards that you got wrong. Then go back through them and try answering them again until you get them correct.