Start with the most applicable skills you can learn at a local community college. CAD and math would be good ones to start with, as they will always be useful later on. And be aware that wages can vary a lot with where you live, no matter what the Bureau of labor Statistics site says. I worked in a shop making precision optics for measuring silicon wafers. The lead CNC machinist got just under $17/hour. That is Tucson for you!! Best of luck to you in your pursuit of a career.