I put the blinders on and am regretting it

I feel so, so stupid right now. The optimist in me said this entire time that I can handle an occasional bout of violence from a patient. But how would I even know that if I’ve never been assaulted in any way in my entire life? I am really upset at the thought that my first experience being assaulted will be in my chosen career. That’s because I can’t blame anyone else but myself. “I signed up for it”. Like, duh, I should know that this is a common issue.