First of all you should never assume you can't get aid just because you're not a citizen.
Great. So I can get student aid even if I'm not an eligible non-citizen?
Yes, there may be some scholarships and other aid you can get.
When am I considered an eligible non-citizen then?
When you are a U.S. national, for example. This includes natives of American Samoa or Swains Island.
What if the expiration date on my documents has passed?
Has your green card expired?
Yes, it seems so.
That doesn't necessarily mean that your status as a legal permanent resident has expired.
Can I just renew it somehow?