Being steeped in the process of learning and exploring keeps me from becoming too nervous. Partly it's about not getting bored.
I recently saw the movie about Ray Charles, and there's a scene where he falls down and the mother doesn't help him. She says, I don't want anyone to treat you like a cripple. I've fallen down before, and Molly will say, get up and just go.
Class is often invisible in America in the movies, and usually not the subject of the film.