Do you guys think this text is correct?

Hi guys!! Can I ask you a favur? I wrote this paper for my English class and I was asked to talk about my ambition. Can you correcti it?

I perfectly know that my ambition is not the easiest thing to fulfill, but this is my lifelong desire: to become the President of the United States of America. Anybody could affirm that the most relevant problem that I still have is the lack of a fluent and grammatical correct English. A President has to talk with people about problems concerning different fields, from economy to welfare; so in my opinion the best way to improve my knowledge could be read many books now that I am still a student then go and live in the USA.

Besides, when you get sure about your language, you need to be an American citizen because the Law does not allow everybody to become the President, so that I should change my nationality and get the American one. Due to do this, I need to obtain the “Green Card”. Every year the US make a kind of lottery in which, if you are really lucky, you can win one. Of course, once you have become a citizen, you are asked to live there for at least six months. If you think it’s too much, well, maybe you don-t know that you must have been spending there not less than 40 years before having the possibility of being elected.

Nonetheless having the right degree is an important requirement: every important President of the United States has attended the University of Yale or Harvard or another prestigious one; In most of the cases they have studied Law, so I’m supposed to get a Master’s degree in Law as well.

I know that this is perhaps the most “strange” dream your contest has ever dealt with, but I am also sure that with the valuable help of the member of your team even an unattainable ambition like mine is, cam become reality.

Thank you so much guys!!