Compared to you, I'm so young but hearing your perspective, I hope I don't regret too much of not making art my primary career as technology has both my skill AND my passion which is why I intend to keep it as a hobby.
Anyway, I'm glad that you mentioned SCRUM as it's a process I worked under in my software company and I'm currently using to set up my art progress. I initially thought my art and software journey will be completely different but as time goes, it has more and more similarities; in particular how to improve which is via iteration like you said. But yeah, thx for specifying more on SCRUM and good luck with your art journey!