Applications are not graded according to strategy papers or certificate papers, but according to topics, ideas and language fluency. You can get high marks if you write a strategy paper well or a certificate paper well. There is nothing wrong with writing a strategy paper, so don't struggle.
Baidu search "China public application correction system" home page has consulting methods. You can consult directly if you have any questions.
If in doubt, please consult the public education enterprises in China.