A little bit of nerves is normal and healthy.

You've had classroom training, a listen-in shift, and you will be supervised.

You work at a distress center, so the calls will be from people who are emotionally unstable. Consequently, it's essential that you remember your training, and never deviate from it. Never.

I'm sure you know this, but all calls to a distress center are potential suicidal calls. However, that's not something to worry about if you execute your training.

Working in a distress center is a noble profession.

Congratulations!