The first trial job I did with my 4th was text wrapping "TEST TEXT" on 2 lines around a 20mm stainless bar using the Mach3 post processor shipped with my software, luckily Mach3 is based on a common industry standard controller.

CAM software is inherently more complex than non-users expect.
Imagine my surprise when I found that not only does it not work out for itself what the job needs or what you're thinking but that once you've decided on your machining strategy and tooling you then will often need to extract existing and/or create additional geometry for the CAM software to use in creating the tool paths you want.

You should work through guides and tutorials for the CAM of your choice, ideally there should be a wealth of tutorial videos for the software you choose, but expect to work and study hard to become proficient.
Join a forum for the software of your choice and read through previous queries/search for answers to your questions and ask your question if there isn't already an answer to it,
Regards,
Nick