First, I usually have a loose time, relaxed mood, quick brain response, tight exam time, and nervous mood, so I can't type well.

In this case, as long as you set yourself a time to do the problem at ordinary times and then do it, it will be effective after a while.

Second, the practice questions are not difficult enough, and the examination questions are more difficult. This situation is usually practiced as a difficult problem.

Third, if you don't judge right or wrong when you finish the questions at ordinary times, I don't know if there are any clerical errors in the writing format and characters and numbers. If this happens in the exam, you won't do well in it. After checking right and wrong, think about the correct answer and don't do it again.

Fourth, are you a neurotic person? You were nervous during the exam. If so, exercise to control your emotions. Create an exam atmosphere for yourself, and you will be immune after a long time. It's best to adjust yourself and get excited about every exam.

Fifth, don't define yourself. You always think that you did badly in the exam. Don't think about anything, just do the problem carefully.