The solution is fun and simple: find a smart person and have them watch you use the computer for an hour.
She’ll share ten shortcuts and principles that will amaze you.
And then you can return the favor.
I did, albeit less intentionally, with Olle several years ago, the big payoff of which was turning off email notifications; this has improved my productivity and reduced work stress.
Last month I watched Josh MacFadyen use QGIS in a coffee shop for 15 minutes and I’ve been using what I’ve learned to great effect ever since.