I lucked into a great job in my field, but I also figured out what I wanted to do by 15 IIRC. So I could make it happen when the luck struck.

There's still "work stuff" like getting to meetings at a particular time I don't love, and some tedious stuff too. There's the HR training etc that's annoying. But day to day I also get to 'play' with stuff I could never afford as a hobby.

Even if you find what you love, and get a job doing it doesn't mean it's a great job. Pay attention to others, do they stick around, or are they bailing ASAP? Is there a functional HR department (often not in small business and there are some stories there)? Do management seem to have a clue, or are they crap with unrealistic deadlines and budgets? Be ready to still change jobs inside whatever fields you like and get into.

Also, like somebody else said, try and figure out if you have to go to college for your field. Or if there's an apprenticeship you need. The 'try a bunch of different things' isn't bad advice, but while you can become a roofer pretty easily, you're not trying out being a doctor...