This post discusses about temperament control issues during preparation for IIT entrance but it holds true at earlier level as well. So, consider this as something related to habit which affects different aspects of life. The single reason that contributes most in failure to qualify for IIT for good students is poor temperament management. Some of the situations described here may look familiar to you. You make too many unintentional errors. You are suggested to be careful. You prepare hard but forget important points at crucial moments. You know things well but are too slow in applying them; perhaps you are not sure whether you are applying right or not. You get hold on the issue and suddenly lose concentration. Mind becomes either blank or starts wandering. Sometimes you feel confident—JEE is well within your reach. Sometimes you feel just the opposite. Everyone else seems to have prepared better than you. You keep changing your strategy with every suggestion you rece...