Urgent! What should I do if I can't write the college entrance examination composition?

If it is for psychological reasons, I suggest you take a deep breath for three minutes and copy the topic of your composition on the manuscript paper. If your brain is still blank, it proves that you can't calm down and you can't write it no matter how hard you think. At this time, you can still get some marks by copying the materials provided by the composition and expanding the sentences.