It kind of sounds like OP morphed from hobbyist to investor, then lost interest when his investment lost value.
There’s a lot of hobbies that offer a path to professional, and I’ve watched friends go down that path. It’s rarely a good experience - there’s all kind of things you have to do as a professional to make a living that you can blow off as a hobbyist/volunteer. There’s a lot more stress when success or failure is tied to whether you eat or not. You lose a lot of freedom to tell dickheads to fuck off.
Never been into collectibles, myself, but the investment pressure seems insidious. Like, it’s one thing to trade cards among friends because you got doubles of something your buddy’s missing, but buying a rare card because it’s “underpriced” to hold until its price recovers is very different. The money is pressure to change from looking at your collection as good, fun, or complete and to looking at its presumptive cash value. Then you’ve stopped being a collector and started being a businessman.
University is ok if you’re starting at zero and don’t even know what’s out there. It’s for exposing students to a a breadth of topics and some rationale of why things are as they are, but not necessarily for plugging them into a production environment.
Nothing beats having your own real world project, either for motivation or exposure to cutting edge methods. Universities have tried to replicate that with things like ‘problem based learning,’ and they probably hope that students will be inspired by one or two of the classes to start their own out-of-class project, but school and work are fundamentally different ways of learning with fundamentally different goals.