I Am Infinitely Reborn to Save the Doomsday!

I actually gained the ability to regenerate infinitely. As long as I die, I can immediately return to a fixed time of a certain day as a loading point. However, after gaining this ability, what I have to face is an endless doomsday! Meteor Doomsday! Zombie apocalypse! Poison gas apocalypse! Alien invasion doomsday! Sun explosion doomsday! I am just an ordinary college student. Facing such a planet-level doomsday, what should I do to resist? In the reincarnation again and again, go to find the only hope to save the doomsday. I am the savior, and I carry the heavy burden of saving the doomsday. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.