Listen to what Ianus is telling you. Even though we are all anxious, there's no need to rush and or hurry. gather all your paperwork, go over it 1,000 times if you have to, make sure there are no mistakes and that you are sending what they are asking for, not more and not less.
Sometimes people shoot themselves in the foot by sending USCIS extra, unneeded, and unrequited paperwork by trying to be extra thorough which in turns causes USCIS to ask extra questions and ask for even more paperwork.
Take a deep breath, relax, and once more information is shed on this, do what they ask. Not more, not less.