The object is to remove all material that keeps the part from measuring up to spec, and not a bit more How's that, now get to work
Once you have the part oriented on screen properly, then the usual method is to quickly remove the majority of stock by selecting from the choice of toolpaths. I tend to pick as large a tool as possible, to cover the area with as few passes as possible.
Click on the NC Manager tab and pin it open on your screen by clicking on the pushpin icon in the top corner. This is where you do most of the CAM related stuff from, so it needs to be open when your drawing or model is done.
Start with a facing process to bring the top of stock accurately to the Z0 plane. It is important to establish a flat top to the job so that the depth of subsequent operations has a definite relationship to a known.
Now, from that point, there are many many ways that the job could be approached, so many that it is not possible to give further advice without reference to an actual job.
If I were you, I would tackle simple jobs to begin with. Jobs with some holes to do, or a simple profile or pocket to cut, things that have a direct correlation with toolpaths of comparable names. Use feature recognition to bring up what we nickname the 'hole wizard' to perform various common hole machining processes.