Own guns.

Plant a garden or get some livestock. Chickens are easy.

If you can get a ready source of power (generator or solar), you're doing pretty good.

Maintain freezer with a minimum of 6 months protein. Keep a stock of rice, beans, and other filler/stretcher foods on hand. Get some flour and yeast.

Get a water filter.

If you have a well or other source of water not connected to a utility, you're doing pretty good.

Get to know your neighbors. No one is going to make it on their own. Work with your communities and you'll all be stronger for it.

I hate this shit.