What are some inexpensive ways to learn to wear and put on makeup?

Except for stage makeup that I wore in the 1990s, I stopped wearing it all when I was 16. I’m now in my 40s and I’d like to start wearing makeup.

I’ve dabbled with it, but I’m always picking the wrong colors that don’t match my face, but they seemed to in the store. I’ve gotten a few makeovers, but the beauticians have used very expensive brands of makeup that I couldn’t quite find color or texture matches for in the wild that were affordable. Sometimes they used techniques I could never reproduce.

What’s a fairly reliable way to get matching colors and very easy techniques for putting on makeup so it looks natural?