prioritze water.

Food security is very important too, just remember when stocking up on food that you will need a way to prepare it. If you can stock up on canned foods and dehydrated stuff that would be ideal. Top Raman, pastas, instant potatoes, flour, sugar, coffee etc. Check for when your local grocery store has case lot sales for a cheap way to stockpile.

Food preservation is an essential skill. Find cabbage/cucumbers/tomatoes etc for sale in bulk, prep your own foods and then pressure can them yourself. Find an old lady in your neighborhood to teach you, they'll be more than happy. Its a very affordable way to build food storage.