My favorite sport

At school, I almost didn't go in for sports. At In physical education classes, I really liked volleyball, and now I like this game. When I was at university, I went to the gym. Then it seemed to me saucine. (<--I don't understand this, and "saucine" is not a word.) And (<--It's best not to start sentences with conjunctions.) I started doing sports dances. The dances were interesting because it's they're beautiful. There were a lot of breaks, but I went back to the dance or the gym. Last year, I started running. It's convenient when the stadium is near. You (<--Avoid writing in the generic/impersonal "you.") I can run at any time.

Nicely written, Katya! Please let me know if you have any questions. As for my favorite sport, I love American football =)