Aspirants can effectively manage resources during UPSC preparation by developing a structured study plan that outlines which materials to utilize. Prioritizing high-quality resources, such as standard textbooks and reputable online courses, can optimize learning. It's essential to frequently assess and revise material to avoid over-reliance on excessive resources, which can lead to confusion. Group studies or discussions with peers can also enhance understanding and resource sharing. Additionally, maintaining a digital document or spreadsheet to track studied topics ensures efficient use of time and focus on areas requiring further attention.