hi,cesar:

paperbird just makes the corrections for your article, and she is an American so that  would be ok.

Let me share with you my experience of learning English. I start always from the words, I spent a lot of time in remembering words. But I read them rahter than write them down ten times for each of them. Cause I think memorizing a word is something like meeting a friend. Some of the friends they have very specific characters so you can remember very quickly , but on the other side,there are always someone you can not easily remember at the first sight. So the best way to avoid forgetting them is to meet them almost everyday. I browse the book of vocabularies everyday, try to read very word loudly and pronounce them correctly. After this period, I began to recite some articles. I recommend you a book, it is called"New Concept English", this is a series of books which edited by Alexander, a British professor,used so wildly in China for students to improve their English. I recited most of the articles in the book3, and than I found it is not so hard for me to write something in English. I don't have to worry about organizing a sentence or choosing a word. They just come out from my mind automaticaly.

So try your best to memorize the words and recite the articles and later on, you will find a brand new cesar:)