The End of the World: I Take Space to Dawdle

[No cp + apocalypse + space + plainness is the truth] Ten years later, "myself" suddenly entrusted me with a dream, telling me who had not yet taken the college entrance examination to prepare for the global apocalypse in five years. After the extreme cold and heat, there would be zombies. As a minor, I was forced to start studying hard and build my own space, just so that my mother, best friends, and children could experience the apocalypse in peace... "What? Are you pregnant?" "What? The apocalypse?" It's not the end of the world yet, and there are two more trolls. Do I really have to go to this end of the world? [Don't ask how many male protagonists there are, look at my pen name, work hard to live, what kind of man do you want! There is basically not much fighting, intrigue or anything else in the whole story, so it should be finished in a smooth way. I hate all people who bully others! Hydrology, first person, mind the upper left corner~Thank you]