I haven't seen an ad for a "drafter" in years. Now every new grad is a "CAD tech". If you can drive the bare program fairly well, and can measure an actual part and make a hand sketch in pencil, and bring your brain to work, you'll be okay.
One of the first problems you'll likely run into is that there are people out there with decades of experience who really don't know squat about AutoCAD, or any other kind of CAD. They're not idiots; they just haven't had the luxury of going to school to learn. Give them some respect, listen to what they have to say, learn what you can from them, and be willing to share what you know, _if_asked_.
You may be tasked with fixing someone else's drawings, or 'just add a piece here and move that' kind of stuff. Beware. Beware of drawings that are out of scale, and lines that don't quite intersect and complex drawings all on one layer and all sorts of amazing stuff that they didn't teach you in school.
One of the worst sins you can commit as a newcomer is promising more than you can actually deliver. Don't volunteer to change the way things are done to the way they should be done ... you don't understand either one yet.
Good luck.