Enhancing Patient Comfort and Reducing Anxiety During Flexible Cystoscopy and Bladder Instillation in Bladder Cancer Patients: A Randomized Controlled Trial and Observational Study

The goal of this clinical trial is to learn if certain comfort-enhancing interventions can reduce pain and anxiety during flexible cystoscopy and bladder instillation in patients with bladder cancer. The main questions it aims to answer are: * Do these interventions reduce patient-reported anxiety during the procedure? * Do these interventions reduce patient-reported pain or discomfort during the procedure? Researchers will compare patients receiving comfort interventions (such as timing of anesthetic gel, calming music, or visual distraction) to those receiving standard care to see if these changes improve patient experience. Participants will: * Undergo a flexible cystoscopy or bladder instillation as part of their usual care * Be randomly assigned to receive one or more comfort interventions, or standard care * Complete short questionnaires about their pain, comfort, and anxiety