Please help me

I want to be an American, I don't have a lot of money to immigration.But I am a good guy. I am willing to contribute to the society, with my wisdom and sweat. My reason is very simple, I don't want to eat poisonous food, I don't want to breathe the toxic air (my respiratory tract is very bad) , I hope to buy healthy drugs without plastic , it's as simple as that. I even willing to join the United States army, fight for freedom and democracy.I think America is the land of dreams , and I believe in miracles, this is my faith 。Please believe me, Let me be americans would make the world a better place. At the same time it also about personal happiness, dreams and freedom。