What would you do in a situation that meant you'd have to survive off the land and start a colony of your own?

Imagine a world where the economy collapsed and everyone had to fend for themselves. It’s not too hard to imagine given the circumstances of the world we live in currently. Now imagine that the government couldn’t protect or provide for you, much like when Katrina hit years ago. What would you do? Would you be able to provide and protect yourself or would you perish in the tough times ahead?

I really think people have lost touch with old customs that have built us into the civilization that we are now. I really feel that we need to reinforce the skills of the past, rather than focus on booming through technology so much.