At three a.m. no one is at their best.
A little nervous before an appointment is good, it helps you pay attention.
Every so often stop and remember that you know American Sign Language, and that is so cool!
Beware that feeling of entitlement that a two hour minimum breeds, because sometimes appointments go one hour and fifty-nine minutes.
Freelance interpreters can go into their car naked and hungry and come out fed and clothed.
Don’t give criticism and expect critique.
You are absolutely right, they do not pay you enough for this.