Short motivation leter help needed

Please, I am really short in time, if someone can review this. Tell me if something is grammaticly incorect or can soud more formal. Also, i think i have used ' I ' too many times.

There are a few reasons why I want to study in Czech Republic. When I was 10 years old my family hosted a child from Czech Republic in program called Joy of Europe, and in that event I have learnt a lot about Czech culture and history. Things culminated with my visit to Prague two years ago, when I became completely sure I adore this country and that I would like to spend some part of my life in it.
This year I have been enrolled in studies of informatics but recently I have come to believe that this was not right decision for me because apart from mathematics, I always had a great interest in social sciences, and only the combination of those two will suit me. This is not available in my country. Therefore it would be a life changing event for me if I could study economy, or economy combined with another subject.
At the beginning of my high school my math teacher said that ,,Every day in which you don’t spend at least four hours on developing yourself is a lost day’’ ant that sentence has literally changed my life. Since then l always try to do my best and not settle for the less. I can say that learning has become my passion, and I am sure that with attitude like that I can contribute to the learning environment in my future university. After completion of my degree I hope to do the same in my country.