One thing I never see from the youtube "prepper" community is an emphasis on having your own tools.
Being able to build and fix things yourself is one of the most important life skills to have. Basic power, woodworking, plumbing and electrical tools along with books and general knowledge on those subjects will pay unbelievable dividends.
After growing up on a working farm that made barely enough money to get by most years, it's hard to emphasize how important basic DIY/fix-it skills are.