Yeah, there's a big difference between edutainment like Brilliant and Duolingo and actually studying a topic.
I'm not trying to be snobbish here, it's completely fine to enjoy those sorts of products (I consume a lot of pop science, which I put in the same category) but you gotta actually get your hands dirty and do the work.
It's also fine to not want to do that -- I love to doodle and have a reasonable eye for drawing, but to get really good at it, I'd have to practice a lot and develop better technique and skills and make a lot of shitty art and ehhhh. I don't want it badly enough.