You
think that you are a prime candidate. In reality, you will need formal certifications and other checkboxes to get a job in a larger company, and you will find it difficult to find a smaller company with more relaxed hiring policies that is actually hiring (and offering what you want). The likelihood of you needing to
hide the lack of basic formal education is very high.
Risk management is something that doesn't really correlate with being 15 year old. But you are at the point where you are about to discard conventional arrangements for advancing through life and try and do something very unique. The more unique it is, the higher the chances of it not working out (because otherwise everyone would've been doing it), so do not burn any bridges and do think through your plan B for the shittiest circuimstances moving forward (like the economy receeding, people not having money to pay for Minecraft servers, inflation eating up your profits, etc).
Lastly, on a more general note, the benefits of fundamental education are hard to distill in a concise form, but they are significant. Knowing how things work outside of the circle of your immediate interests, what people tried, explored and what mistakes they made... all this makes you a person who is smarter than the rest, and in the fastest way possible. You can, for example, re-invent calculus (and it's been done on more the one occassion), but that's highly inefficient way to go about it. Learning from others is the only way to get in a territory where you can truly innovate. But again if you don't see yourself ever desiring to do that, then it's hard to persuade you otherwise.
All in all - don't drop out. There's always another 350k to be earned, but there's no better time to absorb the knowledge than while you are young. It's a once in a lifetime opportunity, don't waste it.