Help Demarcus Allen Stay in College

I am the mother of Demarcus Allen, who just graduated from Austin East High School! My son now attends Tusculum University. We applied for the FAFSA, and after the approval and what they paid, it left us owing $6,000. I am a single mother trying to pay for another to graduate high school, another that is trying to play basketball, and on top of bills, I’m having a hard time right now. The school is giving us until October 30th to pay it down to $1,000. I'm doing this because Marcus is an outgoing, respectful young man who does not hang out and deserves to attend college. If anyone can please help us with anything , we are very thankful and grateful!