Hi and welcome. We have a number of CNC folks here who are pretty generous about sharing what they know. One member, Gaffboat, has written a couple of books for CNC newbies (pix below) under the name Prof. Henry. They can be found on amazon, and there is a sub forum on CNC with a lot of comments that you'll want to check out..
Attached is a copy of a pdf on making money with CNC.
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