Feed prices are sky high right now for one main reason. China, with less than 19% of the world's population is storing half of the existing grain in the world. Some claim their leadership has an abiding fear of famine causing civil unrest and revolution, others claim they are just aware of more trouble to come from their bio attack they unleashed, others claim they are preparing for war and know that trade will cease if they invade Taiwan. Add to that the fact that so many more people are storing long term food supplies or keeping their freezers packed with meat, cheese, and lord knows what else. Artificial demand for food for storage means more grain to feed the critters that were processed or raised to provide the milk that made the cheese.
What to do about it. A big yard to plant forage and planting trees that produce large amounts of berries like mulberries. If you have the time most states have fish varieties that don't have bag limits, carp or gar come to mind. Catch a freezer load, pressure cook once a week to supplement the expensive grain. Dumpster diving behind supermarkets for old produce. Road kill and black soldier larva, maggot raising, worm bins, if you have the time you can find a way.