Hey you!
Yes, you.

You are not stupid, and you are not a burden on anyone. The world is a cruel place, and they often get you to tear yourself down so they don't have to do it themselves. Don't give in, fight back against those thoughts.

You are not stupid, the world is just an esoteric mess where inexplicable things just happens, and the knowledge you need is kept out of your reach.

You are not a burden, the people that built this world around us is what is burdening us, and inhibiting our means and capability to sustain ourselves.

Don't tear yourself down, you're only hurting those close to you. Instead turn this feeling outward, and hate the oppressors who illegitimately run this world and make existence painful for you.