What resources helped you understand oral cancer and Keytruda?

I'm living with oral cancer and currently taking Keytruda (pembrolizumab). I recently tried to open a patient guide on oral cancer, but the file wouldn't load, so I couldn't read it. I'm still hoping to learn how information like this connects to my own care, and I'd love to hear from others who have been through something similar. - What resources or guides helped you understand your oral cancer and treatment? - How did you keep track of questions or information as you went through treatment? Thank you for sharing anything that worked for you. Link: https://www.nccn.org/patients/guidelines/content/PDF/hn-oral-patient.pdf