Preparedness-
You have an incredible opportunity in this apprenticeship, grab it and go with all your might. Giving it your all means going to work every day looking for ways to be better at what you do, and it means showing up for related training prepared for the task at hand. If scheduled for a hands on evaluation that means reviewing the information on your task ahead of time. Ahead of time with enough time to frame good questions about what you need to know in time to get an answer and practice skills. It means showing up dressed appropriately and rested. In short it means caring enough to show you care.

Privileged is not a strong enough word to describe your situation, name another job in this economy available to a high school graduate that has the earning potential that this apprenticeship affords. It won't be here forever if you don't protect it by being effective and productive every day.