In that case the application will be considered rejected, and you might not be able to receive any federal student aid. The most you would be able to get depending on what the financial aid office at your college decides would be a loan called an unsubsidized loan.
In relation to the need for parents to sign my FAFSA form, is there anything I can do if my parents will not give the required information on the form?
I will give you the process for filling out the FAFSA form online or on myStudentAid app
Could it be that the form's questions change each year? My friend attempted to assist me by showing me his form from the previous year, but some of the questions were different.