Respuesta :
The author's main purpose was the explain that the Community Service Council was effectual to high school students. The personal backstory was to add more evidence of the effectiveness.
Answer:
The author's purpose is to explain that the school's new Community Service Council actually works. In that respect, the writer expresses how the Community Service Council had a useful influence on his first day of high school, in which he had made a lot of mistakes and was gladly helped by one of the volunteers. In fact, he also considers the service had a great impact on everyone during his high school years.