You should be growing food.
It doesn't have to be all your food. It just needs to be more than nothing. Any amount of calories that you grow for yourself are calories you won't need to source from a totally destroyed supply chain in the middle of WWIII.

One mature hazelnut tree yields enough calories for an average male to live a month every year. If you plant some fruit and nut trees/vines/shrubs now, they should be mature enough to provide sustenance when you'll need it.

Why aren't you growing a food forest, Anon?
A modest investment now can earn you more food than you can realistically eat after a few years of growth.
Food prices have continuously risen and will only continue to do so as WWIII ramps up.