Deliberate practice (Ericsson) has four defining characteristics: it targets a specific weakness, operates at the edge of current ability, provides immediate feedback, and requires full concentration. Comfortable practice feels good but produces slow growth. To implement: identify your weakest specific sub-skill, design a task targeting it at the edge of your ability, build in fast feedback (self-evaluation, a tool, a coach), practice in 30–90 minute focused sessions, review and design the next session. Even a few sessions per week done correctly outperform hours of mindless repetition.