David Foster Wallace | INFINITE JEST

...you process toward mastery through a series of plateaus, so there’s like radical improvement up to a certain plateau and then what looks like a stall, on the plateau, with the only way to get off one of the plateaus and climb up to the next one up ahead is with a whole lot of frustrating mindless repetitive practice and patience and hanging in there...

...Then the concentration and character shit starts. Then they really come after you. This is the crucial plateau where character starts to matter. Focus, self-consciousness, the chattering head, the cackling voices, the choking-issue, fear versus whatever isn’t fear, self-image, doubts, reluctances, little tight-lipped cold-footed men inside your mind, cackling about fear and doubt, chinks in the mental armor. Now these start to matter.
— David Foster Wallace | INFINITE JEST