Crappy luck dude. Sorry to hear. All the same it's better to get some schooling in before you head out in the truck. Those units you're allowed to mess up on and learn from. It's better that way. You'll be taught the right way and you'll know the basics and the tools which will make you a better tool mule than the journeyman having to go and teach you all the specialty tools which will just slow him down at the end of the day.