Figure out how to become a "trainer" or "expert" in your hobbies. At least then they pay for themselves, and you'll naturally cycle through them, because honestly how many people will actually need a tandem hang-glide or skydive more than a couple times?
My life is botany and mycology. I make money from it. Not spend money. You don’t need a accreditation to study, grow, love plants and you don’t need work for anyone else.
I'm a hobbyist gardener - or, rather, plant enthusiast - but even if I know that the plants themselves might be considered valuable, the scale I'd have to engage in it to make it capable of supporting me in its own is... daunting, to say the least.
But in a profit driven economy, hobbies are fertile ground to make great margins by creating the illusion of need and effectively price fixing with competitors without actual direct organization.
In so, so many fields, prices are set by no force more real than what the consumer is willing to spend. Not materials, not labor, not logistics...just "it costs this much because that's what people are willing to pay".
That's why it's worth getting into non competitive hobbies: the difference between expensive gear and basic gear has far less impact on overall enjoyment of the hobby when that difference doesn't correlate to the difference between having a competitive edge, or not, due to gear. At that point, expensive stuff is a luxury and an option, rather than a prerequisite to be on equal footing.
tbf, the confluence of overpriced hobbies and autistic intensity of focus does open up a monetizable door. Most educational/tutorial content is very light on details, for efficiency's sake. This content is useful for people new to whatever hobby.
But, there's also always a smaller segment of people looking to advance from the beginner to the intermediate level, or intermediate to advanced. These people need all the details, and that market is often unfilled, depending on hobby. Even if it is filled though, at that level of complexity, there's usually more details that can be provided.
So, you end up with guys like AJ Pickett and his Dungeons & Dragons content. Not that he's autistic, he may or may not be. He's just a niche, successful, hobby-education-oriented content creator.