A great reference for Rhino 3D can be found here: https://www.rhino3d.com/tutorials
...
image source: https://blog.draftsperson.net/metric-dimensioning-guide
Exercise: Extrude and Boolean
Make a simple house using a combination of the 2D drawing commands, extrude and boolean operations. Plan some abstracted details, like doors, windows and chimneys that could be added.
Commands:
_extrude
_BooleanUnion
_BooleanDifference
_BooleanIntersection
Exercise: Revolve
Reproduce the 2D form, and revolve it into a 3D solid
...