Before I get started, I want to give the caveat that my advice (as well as everyone's) is based purely on my own personal experience and won't necessarily work the same for you or anyone else. Hopefully, you're able to coalesce all of the advice into something that works for your circumstances.
For most of my life, art was a hobby that I would have really liked to spend my whole life on but never considered as a realistic career option. So I lived my life as if I was going to have to end up "some suit in an office who gripes about who he could have been." Which meant I pursued the "safe" path - did well enough in school to get into a decent college, selected the college that seemed to be the best deal for my budget (in my case, it was a well regarded business school that gave me a full ride scholarship), and stumbled into a boring, but decently paid and comfortable, office job a few months after graduating with a business degree.
And the entire time I was always second guessing myself - I would look at my peers who followed their dreams and headed straight into art school, or they would be super ambitious and go for the prestige careers like doctor, lawyer, banker, etc. But when I would objectively look at where I was - I had no debts (thanks to my scholarship), a low stress job (even though nobody would find it as impressive as "med student" or "VP at a bank"), and I had enough free time and income to pursue my passions on my own time (drawing, writing, taking improv classes, doing stand-up open mics) - I was still advancing towards my dreams even though I couldn't post something on social media to "prove" to everyone that I was. Meanwhile, some of those same peers I compared myself to were extremely stressed, overworked, and questioning their path but reluctant to change it because they've already invested so much into it.
Anyway, less about my life story, the advice this amounts to is this - if you're uncertain about your career path, do the safe option: pursue an education that won't break your bank and try to get a degree in something with decent job prospects. In my experience, this could be a business degree (e.g. accounting, finance, marketing) or something involving computers/coding. This sort of education has a lot of generalized use that can lead to decent pay. There may be some fear that the people who do really well in these fields are overworked and have no free time, but you don't have to be one of those people who wants to excel in these careers, especially if your aspirations are in a completely different field. You can do just well enough in a job that covers your basic necessities but doesn't demand too much of your life that you have no time for your passions.
I know this isn't the most romantic path - artistic types always seem to idealize the "struggle" of being a creative - but it's been working wonders for me, so far. Unless something crazy happens in the next couple of years, I'm probably well past the point of "up-and-coming young talent who comes out of nowhere!" and I'm fine with that, I'm taking things at a comfortable pace. And the little secret about those young talents is that they usually come from well-connected and/or wealthy families - they usually aren't "discovered" by some enterprising agent slumming in a bar. For regular folks, you should really get comfortable with the prospect of not "hitting it big" as soon as you dive into the industry, and the likelihood that if you do end up being successful, you might not know it until significantly down the line. In the meantime, you need to find a reliable way to keep yourself alive.
