Union apprenticeship sign-ups near Tucson, production planner here

I heard of an apprenticeship with paid on-the-job training for people changing careers. I worked as a production planner before this. Classes are in the evening and work is during the day. What do you wish you had known?

Thanks for writing this out. I went through something close to it last year, and it got easier once I kept a simple log of every call and form.

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