Learning and memorising are two different things. I've always been very much against the Educational system of memorization.
OK, now that I finished my rant I find that the best way to memorize is to use mneomnics. Divide what needs to be memorized into several small sections. Assign each section a small one word name and review that section calling it by that name. Example if I am going shopping I do not try to memorize the shopping list as one list. I break it down with titles like canned, dairy, hardware etc. Then memorize it as seperate lists each being what I personaly would catergorise each one in. I do not try to have over seven items in each category. Then when I am in the store, the impact of seeing each category is sufficient to cause me to recall the list for that category.
With that said the important thing is to relax prior to the exam, relax during the exam and rely on your own impulses. Nearly always you will find that your first thought on a question will be the correct answer. When you are torn between several possibilities, follow uour instincts. Have confidence that Allah(swt) has given you all the tools to accomplish all you are meant to achieve.