Do you have sufficient sitzfleisch?
Sitzfleisch is stamina, the power to endure or persevere in an activity. The word is German in origin from sitzen “sit” + fleisch “flesh.” It is a measure of self-discipline, of motivation, and task-oriented drive.
“Literally, the ability to sit, to spend serious time at something, devote your sustained attention to a single subject for four, six or eight hours, and resist the impulse to get up and take a break or check email when you get fidgety or bored.” (The New York Times, May 12, 2012, Tim Kreider, Week in Review.)
“Most people never run far enough on their first wind to find out they’ve got a second.” — William James; 1842-1910, American philosopher and psychologist
“Most of us serve our ideals by fits and starts. The person who makes a success of living is the one who sees his goal steadily and aims for it unswervingly. That is true dedication.” — Cecil B. DeMille; 1881–1959, American film director and Academy Award-winning film producer in both silent and sound films
“Failure can not cope with persistence.” — Napoleon Hill; 1883–1970, American author of “Think and Grow Rich”