Watch the video, and then think of the wisdom of this advice -- "Buy a gun for your family's protection" or "stock up on food".
Seriously though, it's not for Nibiru we should prepare, because there's obviously no preparing for LITERALLY the end of the world. If what happens in that video comes to pass, no amount of preparation will do a thing -- except spiritual preparation.
It's for lesser disasters that I advocate being prudently ready.