I am relatively new to this as well and I can give you some insight as to my own experience.
First, screen printing, like anything else, has a bit of a learning curve to it. It's pretty steep, but at the same time, there are things out there that are a lot more difficult.
My approach was simple. Buy some less expensive equipment and start to experiment. As I found issues I couldn't resolve, research and purchase the right equipment to overcome any deficiencies.
I started out with a speedball kit. I did not like the emulsion setup it had so I moved to a vinyl cutter, using masking vinyl to create my stencil. That was only good for about a dozen shirts total so I decided to get a press and inkjet for film. I cure on a heat press and my production rates are low.
My next investment is into a press that can do more than one colour with good registration. My current 4/1 press is from overseas and it is not stable and doesn't have micros. I can do multi-color prints, but nothing that requires tight registration at all.
The thing with screen printing is you need time to learn, space for the equipment and processes you require and customers to pay for all of this. For me, it was worth it. I actually like screen printing a lot.