Vampire God in the Apocalypse

The first phase of the tiran impact lasted for a whole day. Asteroids falling into earth, releasing and spreading strange green gases into the air. This has mutated or should I say, Zombified humans who were infected, Mutated monsters, and alerted alien races about the existence of earth.
Those who survived for 24 hours recieved a chance to survive what was to come as that wasn't the end.
Dexter was always a person who didn't care about the world. However, becoming a vampire in the apocalypse was something that he never anticipated. But it was a must if he wanted to leave his hiding spot which was surrounded by monster zombies.
While restraining himself from giving into his urges to drink blood, he struggles to keep his sanity intact.
Time and time again he refuses to become a lawless bloodsucker.
Well, he would rise, facing different adversaries and foes, developing from the once weak and feeble human, into a vampire god.
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Make sure to check out this fl book 'Disguised as a boy to attend Belmont High School'.