dreeves,
I have an Associates degree in CAD. I've learned (and forgotton) more systems than I can count. Many of the systems no longer exist! Back when AutoCAD was new, I was working at Xerox on the Intergraph system. My friend was a designer for a small company (he was the entire design department) working on the early versions of ACAD. When they'd come out with a new release, and brag about the added features, I'd wonder how he got anything accomplished. Simple stuff that we take for granted was new back then.
Years later, I started on ACAD 9, and worked with it up through the revisions and finally to Mechanical Desktop - this was when 386x processors were the norm - and spent more time rebooting than designing. By the time I got up to version 14, I was still typing in commands, as it was faster than learning where all the icons were on the various menus. I've since become proficient in Inventor, and for the past few years have moved on to SolidWorks.
Recently, I started doing some drawings for a member here. I have an older version of Solidworks on the home machine, and going back to earlier versions is more difficult than I remembered. Hats off to you for learning any CAD system. Took me a couple of years of college to do it.