Help me to fix my computer!

Hello everyone. This morning, my computer screen went black suddenly and I can’t fix it. I’m writing my master thesis and can’t do anything without my computer. All my files, book are there. I contacted the technical asistance and they estimated that I’ll need 500€ for the reparation. As a student, I can’t afford this amount of money at this moment by myself. So I want to kindly ask your help in this very difficult situation that I’m facing