Please check my English!!!!!

What have you been doing since you left school?



After I finished my school, I started to study English intensively to improve my English skills and TOEFL score. I have also been preparing for Olympiads on Mathematical and Informatics. In July, I participated in IMO held in Spain, and in August, I participated in IOI held in . These Olympiads were good experiences for me. I was invited to teach Math classes to the pupils, who were involved in intensive courses in Math, Physics, Chemistry and English, arranged by Ayb Educational Foundation. Last year I participated in those courses as a pupil.