Home canning is safe and easy. The trick is to can what is so over-abundant that your ability to consume it freshly would result in most of your stock rotting.
Stuff like tomatoes, pears, plums, beets, eggs, green beans, pickles, apples, carrots, and even monster size cuts of chuck roast or serloin. Canned beef is the absolute best!
A good rule of thumb is to can one jar for each day of the year to supplement what you may bake or cook that day. It's unrealistic to think canning will be the sole source of your diet.
Hint.........Dry beans, rice, root crops in a root cellar, dried fruit, dry fish and meat, dry milk, lard, coffee beans bought in 25lb bulk, sugar and flour in 50lb bags will keep you fed all year.
bttt
But...but...but...those things require actual COOKING!!!