still get more nervous pairing with a senior engineer than I ever did in an actual interview

Can walk into a panel interview and stay fairly composed, but put me next to a senior engineer for an hour of pairing and I second-guess every keystroke like they're grading it in real time. Nobody's actually said anything critical, it's entirely in my head. Started narrating my thinking out loud on purpose even when it feels slow, mostly to force myself to stop editing my own thoughts before I say them.