Tomorrow I will walk INTO clinic 1A

For 30+ years I been a pediatric and more specifically a neonatal nurse. For most of my career I wasn't even able to walk onto the floors with cancer patients. I was afraid I wouldn't know how to talk to them and mostly feared I would say the wrong thing. I walk past clinic 1A (Surgical Oncology) daily and NEVER had I even glanced into that waiting room until this week. Tomorrow I will walk through that doorway as nurse/wife/mother/daughter/friend/hospital employee and a patient. How can this be?