In 20 days, focus on a tight plan: start by understanding the exam pattern and reviewing sample papers, then practice sketching, redesign tasks, and situation-based questions daily. Take timed mock tests to build speed and clarity. Keep your ideas simple and well-labeled. In the final days, revise commonly asked objects like cups, bags, bottles, chairs, and lamps, and practise visual thinking, imagining quick ideas, breaking objects into simple shapes, and sketching small story scenes to think faster visually.