i think i messed up on my financial aid?

[Nina]

I was just signing up for financial aid and after submitting my form, my brother was signing up for his and the IRS provided more information on his financial aid application than on mine. I was wondering if I may have done something wrong and if it will affect my chances of being accepted? Its in the processing mode and I was also wondering if I would be able to go back and change a couple things I may have done incorrectly.