remember?

Remember all those multiple choice exams you took in high school? I just took one today for the practical aspect of reproductive biology. I remember being told to always follow your instinct and unfortunately, I didn't follow that advice and regretted it today. There were 2 questions about different placental types, which made me want to rethink my initial answer to the type of placenta found in a pig. Too bad I didn't follow my instinct and proceeded to get two questions on a 25 question multiple choice test WRONG! Plus the fact that there were many questions that I had to make an educated guess on the answers for. Oh alas, where have my multiple choice exam taking skills gone? Caltech=atrophy of said skills. Need to regain them for my Edinburgh final exams and the MCAT, what should I do?