IMO, it's easier to cut fine (within reason) threads than a very coarse thread, and 24tpi or 1mm pitch is pretty reasonable. Don't be afraid to try! It's the way to learn, and nobody needs to know how many "learning experiences" end up in the scrap bucket....
And yes, get yourself a copy of Machinery's Handbook. An older, used edition is fine, if you can find one. Maybe better than the latest, actually, since a home shop is typically somewhat behind the technology curve. Not that much of the information changes from edition to edition, anyway.
Try to make a living, not a killing. -- Utah Phillips
Don't believe everything you know. -- Bumper sticker
Everybody is ignorant, only on different subjects. -- Will Rogers
Law of Logical Argument - Anything is possible if you don't know what you are talking about.