Nhờ sửa bài giúp

My biggest failure was not being selected in show organized by national channl, for golden pen (A good writer).

I was 18 years old, and I had this dream to become a famous writer.

I was very sad because I was not selected, I thought that my novel was not original, but now, I am glad, it didn't work because after that I have improved my skills on writing more, by reading a lot of books, and writing a lot of short stories.