Well once you realize that by design the system is made to keep you in the dark, you realize that everything you ever "learned" is a lie. They own the companies that make the textbooks, they own our history and they keep the truth from us. We have been sold fiction as facts all our lives. School is nothing more than an indoctrination center, college is one you have to pay for.
They never teach you to think critically or to question these "facts", all you learn is how to regurgitate bullshit on your cue. It's the illusion of intelligence that you pay for. Think for yourself, do your own research and come to your own conclusions. Stop buying the snake oil they call "truth".