Please help for motivational letter master in law.

Please, Can you help me in this? I have to write a motivational letter to attend a master in law and I know that both my english and my letter in not much good. Could you help me to point my mistakes out and with some advises? Thank you so much for helping.

Dear sir, madam,
I have been asking myself the reasons because of my application and the choice of this master, the achievements and skills in order to show you how good I might be and why you should accept me. I will do it but let me first introduce myself, telling you a story of persistence. The future is not a gift, it is an achievement and I strongly believe so.
I was born in a tough environment in -------, surrounded by drugs dealers, criminals but also by a lot of kind and honest people. Who do not live in Naples cannot understand how complicate can be to bring a child up and how difficult it is for the child himself to avoid the perils. Yes, the dangers are everywhere waiting for a moment of weakness to absorb you; my family and good luck handled to keep me away from troubles and I have been able to grow up in the right way; because of my education and my desire, since I was able to understand, I chose to support law and legacy in contrast with the rule of my territory. I attended my primary and secondary school with the needs of every child but the reality of poverty brought me on the earth. From the beginning my parents taught me the importance and the real value of the sacrifice, abnegation and the daily fight against the impediments because the life is not to be taken for granted. I started to work when I was kid with my father, a tradesman, in the local market to help my family, developing social skills due the necessity to deal with all kind of people since childhood because of unstable economic condition but I was happy: I was able to manage both studying and working until the end of high school, keeping me away from the pleasure of a young life but also from danger, evolving capabilities and abilities unknown by my peers through daily hard work. I always received the moral support of friends, girlfriend and relatives who pushed me not to give up and continue for my further education. They knew that my dream was to attend a Law School, and they encouraged me to do it.
The university began, I studied all the evenings and night because I used to work mostly all day and I fell particularly in love for international subjects such as -----and ------law in which is included the study of -------and -------Law, ------ trying to expand as much as I could my acquaintance with extra lectures and extra books, supported by all people, friends and neighbors asking me for advices about law and financial matter. I worked harder than anyone else, taking time from my relationships, my girlfriend, my family, my pleasure until march 21th 2012 when I saw my dream coming true: a law degree from one of the most important law school in ----.
Afterwards I realized that all I had accomplish when I was studying was not enough, because my education still needed something to be complete and also because I wanted to study in deep some subject such as t----- attending a master abroad.
I decided to enrich my CV and my life leaving my country for an international experience. Unfortunately the importance of English in Italy is underestimated and to attend a LLM I needed both money and a good knowledge of language itself. Even though I was aware of the risks I moved to UK in september 2012 to be able to sustain a foreign university. I did. Without friends, few surviving sentences wrote down on my notebook and no contacts at all I travelled until -----,, after a random research on suitable cities, and luckily I fell in love for it. The excitement was high, and the fear even higher. In 1 month I was able to find a room, a job and a lot of friends. Since then I have been working hard, to increase my English, to help economically my family, to save every single pound I could just for this moment, just to pay my tuition fee and realize my international experience in your university. I worked 12 hours a day for minimum wage in reastaurants, shops ect, walking on the snow and under the rain, hoping just to reach this moment and I will tell you that: I am not a genius but a hard worker, I chose not to stand but jump and at the end of day the important thing is I am not complain. I am not complain at all. I have been living a fantastic life, I am loved by my family, my relatives, my italian and english friends and even if my efforts have been high it is nothing compared to million of unlucky people on the earth. I told you this story to make you understand that behind a face, behind a score, behind a title and a motivational letter there is a story and you must know the story before to “valuate” the person, even if the risk is to bother you.
The reasons in choosing your program in ------ derive from the hunger to gain a international knowledge of the exact mechanisms behind the making and the application of ----, being sure that your teachings will enable me to get the right tools and information I was looking for my future job as -----.
Moreover I found the teaching method based on ------ innovative and fascinating; the superb reputation of this university and its professors, with all modern supportive facilities to make everything easier and, in addition, the international environment with more than half of student population from all around the world makes this course even more exiting,
I do hope that I will be accepted as an applicant to have the privilege to continue my studies at your institution. Thank you.