This trial tests a brief cognitive behavioral therapy to help people with chronic pelvic pain. It aims to teach skills for managing pain and symptoms with minimal clinician help. The study focuses on adults with conditions like interstitial cystitis and chronic prostatitis, which are hard to treat with current methods. The therapy works by changing how patients think about and cope with their pain. Cognitive Behavioral Therapy (CBT) has been shown to be an effective treatment for chronic pain in numerous studies.