Ask HN: Getting Started with (Q)GIS?

I am interested in creating a GIS database for my farm. Layers for plumbing, electrical, fencing, and more. What is the best was to get started on such a project?

I have looked at QGIS, but it is somewhat overwhelming to consider bootstrapping what I want. There seem to be far too many ways to go wrong, unless you already know the basics of the tools and surveying.

What is the best path for a SWE to accomplish this kind of task?