Successful UPSC candidates manage stress during exam periods through various techniques. Establishing a well-structured study plan fosters a sense of control over their preparation. Incorporating regular breaks and engaging in physical activities like exercise helps alleviate anxiety. Practicing mindfulness or meditation can enhance focus and promote emotional well-being. Connecting with peers for support and discussing concerns can also provide emotional relief. Lastly, maintaining a balanced lifestyle, including proper nutrition and sufficient sleep, is essential for sustaining motivation and productivity throughout the rigorous preparation journey.