I am a pilot, and am going for my instrument rating. Learning to fly well take a lot of time. It's also very rewarding.
I write a lot of code. I write books. I write articles, I write scripts for videos. I act in those videos. I review those videos.
I'm pretty busy most of the time.
When I have a free moment, I read, or play Minecraft.
I like watching Youtube videos about flying, or about science. I like PBS SpaceTime, and Veritasium, and Smarter Every Day. I also like conservative political podcasts.
I keep pretty busy.
And if there's nothing else left, I read science fiction.