University motivationl letter

Hi friends, I just finished writing my motivational letter for a university I'm applying to and I would more than appreciate if someone could give his opinion about it (grammerly and word choise) thanks in advance

__________________________________________________

Dear Sir or Madam,
I am writing to you to apply for the Bachelor of International Economics and Management program at XXXXX because I am certain that studying at this excellent and prestige school will give me the best international studies experience and will open for me many opportunities for international career which I would like to pursue.

I come from a family of economists and bankers, both of my parents are economists, my grandmother was a banker and my great-grandfather found one of the first banks in my country.
Throughout my childhood and my youth my parents taught me the basics of economics and inspired me to research and study about it. I am very intrested in social sciences in generral, and economics particularly andI consider myself of knowing more than the averege person in the field of economics.
Now when arrived to age in which I need to choose a path to the rest of my life and to choose a subject of studying in the university, which has a crucial part in determining how my career will develope , I certainly know that economics and managment are both my most desired occupations and that the studies at XXXXX will conribute, enrich my knowledge and assist me to achieve my goals for my career.

While serving in the army I volunteered to go to a commanders course, and had to pass trough four months of pyshycal and professional course including two months of managment and leadership part in which I acquired managment abillities, strengthen my leadership and learned how to manage people. after finishing the course I served as a commander for another two years and had to go through a lot of commanding dillemas, work in extreme conditions under pressure and few hours of sleeping at nights.
those things eventually built my managment and command experience and increased my urge to work with people and be a manager.

Due to the fact that I was raised in a multicultural family who immigrated to my country from different countries in the world, I had open-minded cultural approach from young age and I have been always eager to explore other cultures and meet people from different countries.I consider myself a Cosmopolitan and always had the understanding that globalization and internationality are the future of the world, and always sought to be internationally involved. I therefore took part in a project which involves meeting people from around the world for a week trip in my country where I toured them my country and explained them about the history of it, I made good friends who I still in touch with and even flew to their country to visit them. Furthermore, next spring I am going to participate voluntarily as an instractor and a councile at a summer camp which unite kids from around the world at the U.S.
I believe in the phrase “The magic happens when you step outside of your comfort zone” and think that the studies abroad at XXXXX, away from my country, family and friends will give me another perspective, broaden my horizon, and will give me a lot of benfits. and I believe that vice versa, I can give back benefits to the students and to the university as a whole.

Thank you for your time and for the consideration of my applicaon.