How can I proof to my teacher that I study?

You can be inspired from me. I used to get 1st rank in every exams during my school life but now just for 1st time I got failed in my exam. Its similar to Certified Public Accountants in some countries. The government gives only 7 to 14% result among whole the country. So its very hard course. Then also I'm still trying. You also keep trying. I hope we both will win!!