You are going to have an experience of a life time. It will be different from your earlier experience. But it is guaranteed that you must enjoy, even if you come here for the first time.
It is true that the things will not be the same like your motherland, but I am sure that you will be prepared for experiencing those differences. Here everyday you can enjoy new challenges.
The most interesting thing here in the USA is that you will occasionally feel confused, unsecure and uncomfortable, because the people here very friendly.
Everything will change, including your traditional lifestyle. All the above things together contribute to culture shock. Living here must be your one of the greatest experiences in life. Don't miss it.