Pleas I need help, I am doing application for master degree and I need to answer this questions, but I need perfect grammatical answer

Please describe briefly your primary and secondary education?

My primary school was 9 years and secondry was 3 years and I earned the second high grade at both in my city.

Where did you study/learn English?

I had studied English during primary and secondary school, and I took English course for six months during my last year at collage.