I bet doing a few of the highest ranked courses on Udemy would help you quite a bit and give you a head start on some concepts you're likely to learn about the

I bet doing a few of the highest ranked courses on Udemy would help you quite a bit and give you a head start on some concepts you're likely to learn about the future. I bring up Udemy, but any online course where they aggregate ratings can probably work. What you're looking for is something most people like yourself found useful. That's about as strong of a signal as you can get for utility, short of an explicit, well-defined goal.