Not Finished- college essay- Help with grammar

If someone could mark this up with grammar corrections that would be greatly appreciated. I understand that this is allot to ask for, but grammar is not my strong suit. Thank you

I love history. It has become something that is truly a part of my person. I spent a summer reading Howard Zinn’s a people’s history of the United States. It changed my life. My brain soaked up the knowledge and couldn’t let go. The book shocked and moved me; it opened my eyes to some of our countries greatest faults and many of our considerable strengths. I was an inspired human being after reading this book. I understood the tail of tears, the true sadness that comes from forcing thousands of Native Americans to relocate. The reason many citizens want Andrew Jackson’s face to be stricken from the 20 dollar bill. While learning of the constitution and the doors it opened for a people. With this great pride I also learned of our flaws which we have many. This book gave me a unique outlook on our history. I have pride, but with the knowledge of respect. Knowing we are not a perfect country. I know I want to change this country. So that I can fulfill the dreams of the founding fathers and make sure that Life, Liberty, and the Pursuit of Happiness are upheld.
History opened the door for me. Until that summer I enjoyed history, but after a people’s history of the United States it became a passion. I would go onto read many books: such as the First Crusade: A New History, The Meiji Restoration, The Roman Empire: Second Edition, Year 501: The Conquest Continues, The Federalist Papers, Alexander of Macedon 356-323 B.C.: A Historical Biography and many others. History is not just past events to me. It inspires me to be great and to do great things. I see it as a window into man’s heart and with understanding history you understand humans. Great people such as Sun Tzu, Franklin D. Roosevelt and Napoleon become me mentors. They experienced hardships they I at my young age have not. Though through understanding them I feel a connection of power that humans of the past have aspired to greatness so can I. I apply this to many things in my life such as problem solving. When presented with a problem I think of those great heroes that came before. I have confidence and understanding. I want to act with the ferocity of Julius Caesar when he fought the Gauls, The tactfulness of Bohemond of Antioch and the Patience of Martin Luther.