Although it must have been in earlier videos, I fixed a fault that pretty much allowed me to now hit what I aim at. This is progress that some players likely don’t experience (lucky them).
I found that I pulled my back hand toward my body during the stroke. This caused the cue-stick front end to hit to left of what I thought I was hitting on the cue ball. The fix was to keep my elbow closer to my body. That prevented that wrist movement toward the body.
Aiming, I am finding out, is not nearly the difficulty I thought it was.