Jasmin has good study habits. She completes her homework each night before doing anything else, and she always makes sure that she understands her assignments. Then, after she finishes her homework, she uses the rest of the night to talk on the phone, watch TV, and surf the Internet. She usually falls asleep around midnight while watching TV, and her parents have a hard time waking her up each morning. Jasmin loves history, and she enjoys studying it. However, the highest grade that Jasmin has been able to make on any of her history tests so far this year is 78. History is her favorite subject, and she understands the information covered on the tests. What should Jasmin do to increase her performance on the next history test?