It works. It’s probably faster. But it’s not much materially you couldn’t learn on your own with the help of some books and instructional videos.
But art school, like many degrees, leads to a network of fellow artists. If you’re lucky, a few want to be curators—or publishers—and they like your work. I don’t regret at all the time I spent inside mine. But it should never be a reason not to start doing your thing, nor a reason to disparage where you are. School will almost always have the advantage in keeping your disciplined and on a path, even if that drifts and veers, sometimes along the way.
Lots of artists have done the academic thing, and lots have figured out their own way outside it. What matters is keeping it up, moving forward.