I intend to plant potatoes or something to make food. I also intend to get a more fuel-efficient car. Less money on gas, more money to feed people with. Waste not, want not.

It's a start.
Enas has good points and government can do a lot to help, but the danger with that is communist control. A wicked malignant narcissist may come into power and say, "You insulted me, you starve." This has also happened a lot. For example, North Korea. I'm not putting this on the government to fix as much as I am putting it on myself to fix. Maybe I make food cheaper and prices have to come down to match me.
we all have some power

I got this list of possible causes:
Supply Chain Disruptions: Events like the COVID-19 pandemic, natural disasters, and geopolitical tensions can disrupt the supply chain, leading to shortages and higher prices for food items.
Inflation: General inflation increases the cost of goods and services, including food. When the overall price level rises, the cost of producing, transporting, and selling food also goes up.
Increased Demand: Higher demand for certain food items, whether due to population growth, changes in dietary preferences, or increased consumption, can drive up prices.
Labor Costs: Rising labor costs, due to minimum wage increases or labor shortages, can lead to higher food prices as producers pass on these costs to consumers.
Transportation Costs: Increases in fuel prices can make transporting food more expensive, leading to higher prices on store shelves.
Climate Change: Adverse weather conditions, such as droughts, floods, and extreme temperatures, can impact crop yields and livestock production, reducing supply and increasing prices.
Government Policies: Tariffs, subsidies, and other government policies can affect food prices. For example, tariffs on imported goods can make certain foods more expensive.
Commodity Prices: Fluctuations in the prices of key commodities, like wheat, corn, and soy, can influence food prices. When commodity prices rise, the cost of producing food items that depend on these commodities also increases.
Energy Costs: Higher energy costs affect the entire food production process, from farming to processing to distribution, leading to increased prices.
Global Events: International events, such as conflicts or trade disputes, can disrupt global food supply chains and affect prices.
Agricultural Input Costs: Rising costs of fertilizers, pesticides, and other inputs required for farming can increase the overall cost of food production.
Currency Fluctuations: Changes in exchange rates can affect the cost of imported food products. A weaker local currency can make imports more expensive.
Food Waste: High levels of food waste can reduce the overall supply of food available for consumption, driving up prices.
Technological Changes: While technological advancements can increase efficiency, they can also lead to higher initial costs that might be passed on to consumers.
Monopoly Power: Large corporations with significant market power can influence food prices by controlling supply chains and pricing strategies.
Speculation: Speculative trading in commodity markets can lead to price volatility and increase food prices.
Health and Safety Regulations: Stricter health and safety regulations can increase production costs, which might be reflected in higher food prices.
The first step in fixing a problem is knowing what it is.