Normally when people reach their junior high years, school becomes tough (艰难的) for them all of a sudden. At least that is what happened in my case. Anyway, when I was in primary school, I had no difficulty in staying in the top 20 of my grade. But when I reached seventh grade, my grades dropped. It was hard for me to keep my grades as good as before. Right then I realized I had a problem. Was my way of studying wrong? Or maybe I didn’t work hard enough. No matter what the reason was, I knew I had to fix it fast.