I need advice about tuition for my son?

The time line is here and I can’t think clear. The facts1: My son fall with bike last year and broke some muscles in the back area. He worked for 2 months but the pain was stopping him to be able to go forward. He started the college (Brookhaven) and finished with strait A’s. He looked for a job but could not find anything with his back problem. At the end of December we took him to emergency. The muscle was totally broken and the pain excruciating. Now after treatment, he is healing. He is ready to work and send resume in one million places but no answers. The second semester is starting next week and I could not find a solution for the tuition. I looked for a job, but I have 2 small kids and I was offered exact the amount of salary to cover the daycare. I am still looking to work in a daycare and applied to any position possible but the answers are the same. They will take from paycheck the money for kids and will be under $50 left. That maybe will be the gas money to go to that job. My husband makes money to pay the bills and food. We live frugal but frugal as we can with 4 kids. We buy clothes from craigslist and other stuff. The facts 2: my son is not qualified for financial help to study, he is not citizen yet, but he will be in 2 months. I don’t know how to find a solution to send him back to school, he is capable, he wants to learn, he is smart, handsome and all that. I asked him that I can go and talk with school, for him to start now and pay later but he is proud and not let me do that and said no one will listen to me. Please, I need some brainstorming from others. Maybe the answer is next to me but I can’t see it.