Union apprenticeship sign-ups near Nashville - 23 weeks in

A local apprenticeship programme is taking applicants for the next intake. I worked as a mechanic before this. The application needs a diploma or equivalent, a driver's licence and a short aptitude test. What do you wish you had known?

Bring your transcripts and any proof of work history. They asked for both in the interview.

The aptitude test was mostly maths and reading a diagram. Free practice tests online were enough for me.