Blind mother want to pay children school

I am a blind mother just wanting to pay for my children to go to school. I fell behind with the payments and the school wants to kick my boys out. I did apply for for help from the school with no success. Then the sports comes up and I just have more and more things to pay, how can I tell my boys they can’t take part just because there mom is blind and can’t get a job. They can’t understand thank you in advance for helping me. I can send pictures of my boys on reqwest but dew to kids getting kidnaped so easily in SA I prefer not to upload any here.