Deut 8:3 And he humbled you and let you hunger and fed you with manna, … that he might make you know that man does not live by bread alone, but man lives by every word that comes from the mouth of the LORD.
It didn't always work. Gratitude turned into moaning as they remembered Egypt's roasts. In truth though, if they went back to Egypt, their backs would be beaten by slave masters.
For all your desire to live a life which has enough, remember that it's the wilderness experiences from God which teach us how to truly Live – daily dependence on His every word. Meditate on the word, hide it in your heart, speak it to one another, learn it from true teachers.