The true measure of what you put in, is what's received on the other end.
In a service situation, each delay can mean many unsatisfied customers, each one telling many more.
Instead of just asking 'How did I do?' ask 'How can I do more?'
Industry jargon may not be a language your customer understands.
What matters more? What you said you'd do, what you hoped to do, or what you did?
You can't stop change. Don't let it stop you.