Apocalypse in the World of Magic ATWM

A young girl, a college student, works day in and day out to pay for her studies, but she dies from working so hard.
Then she finds herself in a new world in the body of a 12-year-old girl named Lilian.
"What? I'm in another world ... and on top of that there's a world overrun by a zombie apocalypse ... and there's magic ... how can it get any better than this?".
Join Lilian on this incredible adventure into a whole new world, where she will explore every part of it and possibly find a way to save it?

Hello, this is my first novel, so any constructive criticism is very welcome to help me improve.

This is the English version of the novel, there is one in Portuguese.

Support me: ko-fi.com/horaciogui

The image in the novel is not mine, if you are the owner and want me to remove it let me know.