Am I considered homeless?

While you are living in a doubled up situation (living with other people because your family cannot afford to live on their own).
Definition of doubled up

When you are not in college you go back to your aunt’s house with your family. This means that you are not an unaccompanied minor, who is a homeless youth.

definition of unaccompanied youth

If you were an unaccompanied minor, then you may be considered independent. However because you are with your parents, you must use their income/assets on the FAFSA.