Immigrants to the US of A!

Many of us came to the United States from different parts of the world to be part of the American dream. Some people have truly had the experience of the American dream while some others have had such a challenging time that they have had to pack it up and go back home out of frustration. I know quite a few people in my field who did that as a matter of fact; be it the stress of the medical licensing exams or otherwise. But even for those people who have managed to integrate and who are considered successful by any stretch of the imagination, there have been and possibly still are challenges living in America. What are your experiences? What has been the most challenging and what are some of your greatest triumphs as an immigrant to this country? Did you experience any culture shock? What are the specific issues faced raising kids in this environment but with a different value system from what is prevalent in the immediate environment? Please leave comments about your experiences. Thank you.