The end of the world cured my depression

I'd read hundreds of fantasy novels, and nothing could have prepared me for what would happen next. Hell I didn't even fully remember selecting this class that pretty much guaranteed my death. I mean what kind of lunatic would choose one of the classes that had the lowest chance of survival in the early parts of this whole mess? I just picked it out of tired curiosity since I'd always wanted a pet dragon even now as an adult. How the hell was I going to survive if my current chance of survival was 1%?
Sure I was highly compatible with my class, but that didn't mean shit when my reward for that was having to kill 5000 monsters to prove I was worthy of hatching this dragon egg.