To make the most of the Forum IAS UPSC Prelims Toolkit, start by familiarizing yourself with the layout and structure of the tool. Begin by accessing the topic-wise PYQs on Ancient & Medieval History and Art & Culture, and create a study plan that covers all relevant areas. Utilize the toolkit regularly for practice, revision, and self-assessment to track your progress and identify areas for improvement. Stay dedicated, follow a disciplined study routine, and leverage the insights offered by this toolkit to ace the IAS UPSC Mains exam.