Surviving the End of the World with My Younger Sister

In the fourth year after the apocalypse, my boyfriend and his mistress teamed up to kill me. I suddenly woke up. Oh! So I'd returned to before the apocalypse... Remembering all the disasters of that time, I had fought to survive in the wilderness, suffered unbearably, been abandoned by everyone, and framed! Now that I've been reborn, I'll get back everything I lost. I sold my house, borrowed from every relative, and maxed out every small loan I could find, scraping together a few million. I stockpiled food, clothes, medicine, gasoline, everything I could need after the apocalypse. I even set up a shelter in the middle of nowhere. Everything was ready, all I had to do was wait for disaster. But... why hasn't disaster struck in this world? This is going to kill me! The above has nothing to do with my novel.