Plan Your First Practice Session for a New Skill

You have decided to finally start a new skill tonight and have precisely no plan beyond good intentions and a vague sense of enthusiasm. This gives you one 30 minute session: a warm-up, a single focus, and a quick way to check afterwards whether it actually went well, without buying anything you do not already own.

Plan a single 30 minute first practice session for [skill you're starting, e.g. juggling, watercolour painting, touch typing]. Include a 5 minute warm-up, the one thing to focus on for this session only, and a simple way to check afterwards whether it went well. Do not suggest buying any equipment beyond the absolute minimum needed to start today.