Practices that support mental well-being during UPSC exam preparation include establishing a routine that includes regular breaks, physical activity, and healthy eating. Engaging in mindfulness techniques or meditation can help mitigate stress and improve concentration. Building a support network of peers or mentors encourages sharing challenges and solutions. It is crucial to maintain a balance between studying and personal relaxation to prevent burnout. Additionally, seeking professional guidance from a counselor when needed can provide coping strategies for managing stress and maintaining mental clarity during this intense preparation phase.