Endurance 1: a long passage
Keep the same pace all the way through a longer passage. Stay relaxed even as you tire.
Put your fingers on the home position (F and J) and press Space to start
Most people who want to improve a skill imagine that progress will be smooth: a little better every day, like a line climbing steadily across a chart. Real progress rarely looks like that. More often, it moves in steps. For a week or two, nothing seems to change, and then, almost overnight, a passage that felt difficult becomes easy. Typing is no exception. Your speed may stay at 40 words per minute for days while your fingers quietly learn new patterns, and then suddenly jump to 45. The flat periods are not wasted time; they are when the real work happens. The important thing is to keep practicing, to stay relaxed, and to resist the urge to rush. Accuracy builds the foundation, and speed grows on top of it.