I first used a CAD program in High School, not AutoCAD, but similar. I first used AutoCAD at my Co-op job in College, version 10, in 1990. I studied Mechanical Engineering, but didn't graduate. In 1999 I moved to Colorado, and worked as a Cad Operator for my current company, a Consulting Engineering firm, I did HVAC and Plumbing design for a while, then they found I had greater skills. I wrote a few lisp programs (not little routines, big programs) starting around 2002, and started programming full time, using VBA around 2005. I switched to VB.NET in 2007, and never looked back.
No kudos given...yet.