Union apprenticeship sign-ups near Minneapolis, accounts payable clerk here

The training centre near Minneapolis opened applications for apprenticeships in electrical and welding trades. I do not usually post, so bear with me. The application needs a diploma or equivalent, a driver's licence and a short aptitude test. What do you wish you had known?

Visit the training centre in person if you can. Seeing the classrooms helped me decide.

You earn while you learn, but the first year is tight. Plan your budget carefully.