Correction Request 2

In my highschool, there were I had many good friends. They had pure mind We were simple and innocent and but we studied hard. If I didn't have any friends, I think I would have  couldn't get over the hard most difficult time. Thanks to them, I could was able to laugh and release vent out my stresses.

There were also others who were not nice at all. bad students. In my classroom, there was a clique which was composed with of four girls. They usually talked who gabbed behind other friends the back others, and interrupted other student's interrupting everyone's studying . Last week, one of them sent me a request to be a friend on facebook, but I declined.

I liked mathmatics most best. It was is very interesting to me because I liked solving difficult problems which made give me feel a sense of fulfillment. And I could can concentrate on it math better than any other subjects like English or Korean. I was am really bad at Korean. I studied hard, but the my grade was is always poor. So Finally I refered to read many textbooks, practised reading articles fast and even studied with books suited for graduate students. In the end, After all, I got was rewarded with the best grade in for Korean at in the final semester. Since I After this experienced this, no longer would I don't want to avoid something any difficult thing easily. I know that if I really make an effort, I can get a will be rewarded.

Correction Request 2

In my highschool, I had many good friends. They had pure minds and studied hard. If I didn't have any friends, I don' think I could have gotten over the hard time. Thanks to them, I could laugh and release stress.
There were also bad students. In my classroom, there was a clique which was composed of four girls. They usually talked behind other friends backs, and interrupted other student's studying. Last week, one of them sent me a request to be a friend on Facebook, but I declined.

I liked mathematics the most. It was very interesting to me because I liked solving difficult problems which made me feel fulfilled. And I could concentrate on math better than other subjects like English or Korean. I was really bad at Korean. I studied hard, but my grades were always poor. So I refered to many textbooks, practised reading articles fast and even studied with books for graduate students. After all this, I got the best grade in Korean at the final semester. Since I experienced this, I don't avoid something difficult easily. I know that if I really make an effort, I can get a reward.