You should have four types of food sources.
1.) Canned food for short term (a few weeks) or ration supplementation. Not labor intensive. Can it yourself or buy it this type of food required no water, no cooking and is currently easily available and cheap. The down side is that they have a comparatively limited shelf life, are heavy and take up lots of space.
2.) Dried foods staples. Requires water and cooking (fuel) longer shelf life (but not forever). Good for time when you might need to eat for several months from your stash. A bit more labor intensive.
3.) Grown food. Requires seeds, land, animals, water, time and fuel for cooking. Labor intensive and you need to know HOW to do it without power tools. There is a book out there "gardening when it counts" that is pretty good as long as you can overlook the fact the author is a commie. For situations that last for years.
4.) Foraged foods, requires knowledge of what is edible. Supply is more dependent on chance then anything else. Can be used any time, I forage for fun but in survival situations not recommended as a primary source of calories.
I put longer lives on the stored food than you do.
The LDS church sells canned food (to non-members too) that has usually a 30 year shelf life, and the prices are very reasonable. To me that’s so close to forever that it doesn’t matter. Brick and mortar centers and online orders are both at this link: https://providentliving.lds.org/self-reliance/home-storage-centers?lang=eng
Canned foods are often very good well past their “best by” date. I open various cans every three months to see how they are doing and just how long they last. I’m particularly partial to canned fruit and spaghetti sauces, which are good more than three years past the date on the can, since they are much better canned than dried options such as the LDS foods. LDS long-term storage is heavy on beans and starch, so canned fruit and canned soups round out the menu nicely for up to four years.
Some grocery store cooking oils at normal prices (not the expensive stuff such as coconut oils) have three-year “best by” dates and are fine for at least four years. Like fruits, oils are a good thing. They are also harder to do on your own, except for lard, of course.
I do NOT recommend canned tuna even a month past its date. I’ve opened it six months later, and no one could eat it thinking it might be okay. I cracked a second can and didn’t even finish opening that one, then checked and threw out four more cans of expired tuna. That experiment failed, except that finding out was the purpose of the experiment.