To have a good score on test you should prepare to it
You shouldn't leave learning for the last moment. You should make a study plan
You should take a break every hour while learning
You should make notes. You should repeat material every day
You should use many exercises. Day before test you should go to sleep early. At the morning you should eat light breakfast. On the test you should focus on the questions. You shouldn't think you will fail. You should have good attitude.