I didn't really know what I wanted to do for a living until I was ~ 38. It didn't really become an actual job where people get paid until I was ~ 45.
So, you might just be ahead of the curve, and the world of work needs to catch up with you.
You don't have to love every moment of work, but a continual slog isn't just a downer. Stress can be cumulative over the years.
I once heard (or maybe read) this bit of advice: if you won the lottery tomorrow and quit your job, what would you do all day? And then that should be your actual job.
Welll, that's not always practical. I doubt you or I will be paid for sipping margaritas on a beach.
But you can still deconstruct the fantasy and consider why it's that one which appeals the most to you, rather than another. And if there is something practical in there, seriously consider pursuing it.
For example, your could be paid not to sip margaritas, but for product testing. Or perhaps you would be able to satisfy yourself with a profession where you could/would visit beaches a lot. Wildlife conservation, maybe?
Try to talk directly to anyone in a field that even remotely interests you. Not read their blog, but actually talk to them. Why do you like what you do? How much preparation or studying did you have to do? What are the boring parts? How competitive is the job market in this industry?
You might find none of it's practical, but it still gives you some ideas.
And no matter what, not knowing what you "want to be when you grow up" should be normalized already. How the hell are you supposed to know what will make you happy in 20 years? How can you know if your field will even exist later in your working life? Video rental clerk and buggy whip maker just aren't the jobs they used to be.