"What can I do, as a person, to stop it? ... What should i do.. sell my truck and tools, go into the forest to grow crops and maybe live in a cave?..."
Individually we can reduce energy use - like turning off pilot light - and getting more fuel efficient vehicle where possible, drive less, turn thermostat up or down, ... It also saves you money, reduces the amount we send to foreign countries that are sometimes unfriendly,...
Not productive to feel depressed about anything.
Collectively, the government could quit subsidizing oil companies. Exxon and Mobil are two of the top 10 U.S. companies yet pay no federal income taxes, at least in some years. We should pay enough tax on oil to pay for the military required to maintain it. And enough more tax to cover cost of the polution including CO2. We should spend more developing alternative fuels. etc.
But since we have "the best government money can buy" that's not going to happen until people realize they're being duped and vote for different politicians.