If you work harder, you won't have time to be afraid. I am the same, because I was afraid of many games when I was a child. Every time I hear an athlete's March, I feel nervous reflexively. But as I grew older, I slowly learned to adjust myself. In view of your psychology, I want to say that fear is normal, but excessive fear is a burden.
Personal experience tells you that you should run 1000 meters or more every day before physical examination, and the speed is controlled by yourself. If you don't exercise for a long time, you can try to slow down first and then accelerate when you feel you can bear it. The most important thing is to be familiar with the feeling of sports, and gradually you will find that 800 meters is just that.
When you experience higher intensity, nothing will happen and you will not be afraid. When standing in the long jump, I think about how to jump well, practice more, and jump more if I have nothing to do. Just like doing something, you will be at a loss when you do nothing, but you will be afraid when you start studying hard.
You must believe in yourself. I didn't fail a physical examination in high school. Actually, I can do it. I just have no confidence in myself. Do not underestimate yourself. Of course, you can also choose to find someone to take the exam. It is not difficult to find someone to take the test without being found. It is not difficult to run 800. The difficult thing is to overcome your fears and break through yourself. You were the best at that moment.
Don't take sports too seriously. Sometimes, I am too nervous because I care too much about gains and losses. I learned from my senior sister that ordinary universities will not give you a diploma of sports card, and there is still a chance to make up the exam. When making up the exam, let the teacher see your sincerity. Don't go if you take the 8 million exam. Run down and pass. Really, just like high school.