Little point in answering. Robbie will be taking time out the rest of the week, too busy revising to return here.
Still, just in case ... Study notes and memorize facts for about 30 or so minutes, then take a five minute break. The breaks are important. Put in at least a full working day of study each day. Get about 8 hours sleep at night. Test yourself, on old exam papers if possible. Get to the stage where you could explain it well to others.