There are a lot of ways one can prepare for such a collapse, the most impactful way is to develop skills and preserve knowledge of history, production, and other important information that is being suppressed or pigeonholed to only industry in foreign countries; to a greater or lesser degree.

Preserve the dependencies that promote critical thinking, rational thought, and measured reason.

Aside from that, figure out what you need for survival beyond the basics in a non-permissive environment without a rule of law; and build a community of people that have these skills. The lone wolf always dies, the pack survives.

Austere Medicine, Food Preservation, Guns/Self Defense, Information Recon, etc... Map dependencies, costs, and yields (information that is largely kept confidential these days).

Learn how to make stuff from scratch, and learn what areas you can leapfrog given knowledge of the development of such the technologies in such industries.

Most of the materials we rely on today would not be available because we rely on knowledge of chemistry which few have.

The actual factors that determine the Wealth of Nations are based in the ability of the individual citizen to be self sufficient and produce necessities from scratch that will last without excessive recurring cost. Through a distribution of labor. The book from Adam Smith covers these factors in great detail, and while LTV is now defunct/refuted, the cost portion implicit in the making of intermediate goods resulting from such valuation/economics is not, and remains valid.

Debt-based money-printing on the otherhand is all about distorting the market allowing nationalized industry to outcompete legitimate companies through slave labor under financial engineering. The debasement stolen from everyone holding the currency is in fact slave labor. A runaway positive feedback system that destroys everything it touches (eventually), tainted by Ahriman.