Candidates facing failure in UPSC should adopt several motivational strategies. These include setting realistic goals, seeking support from peers or mentors, and maintaining a positive mindset. Reflecting on past mistakes can help identify areas for improvement. Additionally, focusing on self-care through exercise and hobbies can relieve stress. Engaging in discussions about success stories of past candidates can inspire a renewed commitment to preparation. It's essential to remember that failure is often a stepping stone to success and should not deter candidates from their ultimate goals.