I was sad to see what happened to your family. It was an awful thing for the army to do what they did, especially to your mother, because she was not even involved. You were very brave to come to America, especially to bring your sister along. On your way to the "Promise Land," you encountered many events, both lucky and unlucky, but for your sake, mostly lucky. The man who lead you past the open fence, was one of the worse people you met on your journey, and it got worse when you got caught by the border patrol. It was smart of you to say the opposite answers of the questions they asked. It was also smart of you to talk like a Mexican, with that foul language, or else they would have sent you back to Guatemala, and that would have been the end of your story. After you finally met the "Coyote" you were told about, he told you how to get to America, and although it was very tough to crawl on all fours for miles on end, you and your sister made it to America. .
In America, you found a good job, learned English, and got a sense of being an American. You showed a lot of heart when you didn't take the job in Chicago, because you would be away from your sister. And again later, you were by her, when she also was the victim of an untimely demise. Then, you went back to work, and reminisced on your life and your family, and accepted the fact that Guatemala was so different to America, but yet so similar. You had to work awfully hard, for very little money. You should get in contact with the lady in Chicago, to see if she still needs someone, and if so, fly out there. Doing so would get you citizenship in the United States, which will help very much in the future. Good luck in life, and take care of yourself.