Before immigrating to Canada, I had been studying at one of the most prestigious universities in my home country. I spent about 4 years of my life in a dormitory with some amazing people. I really enjoyed that time. In fact, besides every academic achievement during my studies, I've learned that life is too short, and we should enjoy every moment of it. I have lots of good memories with my friends at the dormitory, and I hope to meet them again in the future.
the period of time - choose one word either period or time
achievement , not achievements
and some comas)0))