To handle a narcissist, it’s crucial to understand their traits and the manipulative tactics they use, such as gaslighting. Seek support from organizations and professionals specializing in narcissism. Engage in self-care, therapy, and boundary-setting to protect your mental health. Utilize online resources and tools like the NPI to gain insights and access support platforms. By recognizing and addressing the behaviors associated with narcissism, you can navigate difficult situations and prioritize your well-being.