You can also search on Google for: How to Screen Print. You'll get a bunch of links. Try watching the YouTube videos on that subject.
Also, you can Outsource your screen printing needs to a local screen printer with Contracting pricing. Even if you buy the equipment today, you'll need some time to practice.
You're going to need a screen printing press, Film, Screens, Emulsion, ink, a flash unit, an exposure unit, scoup coater, ink scouper, stiring stick, and a dryer of some kind. Oh, also a printer to print the film.
If you watch the videos you'll get the idea. Also, don't get a Yudu machine, in my humble opinion.