Design for Speed

Use the SPC framework: Set a goal, Practice at the edge, Capture what you learned. Before you start, write one sentence on exactly what you will improve today. During the session, push until mistakes appear regularly. Afterward, jot down one key insight.

Keep sessions between 25 and 90 minutes. Past that, focus drops and you slip into mindless repetition. Two sharp 45-minute sessions beat one sloppy three-hour marathon every time.