Hi Susan. AutoCad is only similar in its drawing tools for 3D CAD. I learned Rhino 3D by trial and error. I had a lot of colleagues also learning this way and we helped each other.
check out http://www.rhino3d.com there are a lot of tutorials and you can download a trail version that allow 25 saves. cheers!
"Collect 2020 Volunteer Opportunity
We are looking for volunteers to support our Collect Fair being held at Somerset House in London, from 27th Feb- 1st March 2020.
Collect presents an unrivalled opportunity to see and buy exquisite…"
"Crafts Council Gallery Volunteer opportunity
We are looking for enthusiastic people to welcome visitors to our new space, the Crafts Council Gallery.
In March 2020, we will open a new home for craft, which will house our own…"