@halimatons50790 "My screen have a black spot" means that the screen is broken. That is what creates the black spots.
"I don't know how to fix it" since iFixit does not have specific guide for this yet, use the one [https://www.nadiemellamagallina.com/en/manuales/smartphones-1/xiaomi-191/xiaomi-redmi-10-2022-1368/pantalla-completa-12374|from here] It is written in Spanish, so use a browser that will do the translation for you.
"I don't have the money to fix it" that, we can't help you with.