Do not become Mormon. Seriously. Fuck anyone that even jokes about joining that goddamn cult just so that they can be a prepper.
Preppers get a bad rep because there are a lot of far-right gravy seal types in it that think that with enough guns they can loot what they need, but there are a lot of more serious, sober people that recognize that the US is really bad at being ready for major disasters (like, say, a global pandemic?), and try to have as much of their own shit together as possible.
One really important tip: you will not survive a major disaster that causes a complete breakdown of society for an extended period of time unless you've built a community of people that are all working together.
Funny, in modern countries, gun owners are considered the most cowardly, pathetic humans on earth. It'll probably be quite easy to defeat them when it comes to it 😂