I started uni at 19 (math & computer science at a local state university, I didn't have to go into debt for it) and that gave me a big boost in my programming ability (i continued working in that first job part-time throughout school). After that I went through several jobs in the next ±decade and made sure to always apply to places where I'd learn something new and level up as a developer.

At that point I knew a lot better what I wanted & didn't want to do. But I don't think I could have learned that without that experience and I don't regret it as it really helped me hone my skills and learn a lot. I also learned that the people you work with often make a bigger difference to the experience than the product you work on.