Strategy
Strategy is the least used trick to crack any competitive exam. You go through the entire question paper in a nutshell, it is very important to plan your approach for a section. When you get the question paper the first reaction of the brain is to get overwhelmed by the number only. Of questions Add to this that the concern you get from the topic which you didn't consider important in the first question is only from that. In a rush to overcome this trauma, the mind starts running after random questions.