"Studying" is a technique where only few people are able to grasp what they are studying. There is saying by Albert Einstein "The person who reads too much and uses his brain too little will fall into lazy habits of thinking". So visualize what you are studying and try to use what you have studied in real life. During exams, students study for long time but when going to exams halls they forget everything. Why is this?? because there is no concentration while studying. To fulfill your aim, study more with concentration and work harder and be successful.