I think that I am safe in saying that most of the folks on the forum will be very helpful in planning your visit. My experience in travelling abroad is that if you attempt to learn the language and customs before you go, your way will be a lot easier. Since you type english very well, I suspect that you speak it well also. That would help you get around quite nicely.
What parts of the US would you like to see? I will gladly give my recommendations based on my experiences. The US has a tremendous amount to see. If you prefer a particular type of environment, that would help narrow it down. If I can guide you any in Florida, say the word!