Tick anything you already have, in any order. Quests unlock once this is done.
Workholding is what beginners underestimate. A piece that shifts mid-cut ruins the job and can break a bit at ten thousand revolutions per minute.
2 things left above. Quests are real things you go and do, so they only make sense once you have what you need.
First one waiting: Draw a part in CAD and cut it on the machine