My application has already been sent to USCIS, am I able to change anything on my application package?

Unfortunately, no. Once an application has been sent to U.S. Citizenship and Immigration Services (USCIS), there is no option to make changes on the forms. If there is a mistake on the application, the applicants can generally let the the officer know during the green card interview. USCIS will send the application back if payment is incorrect, or if there are any missing signatures.