[rwhitman]

I've run little businesses, been self-employed as a freelancer and agency, run startups, been in management at small businesses and other intrapreneurial roles maybe 22 years now - and I still don't feel like I have great "business sense".

Its a learned skill. And with any learning journey you just have to plug away at.. learning. Read business books and take notes on them. Treat it like you're doing a self-directed MBA. Pick stuff off of reading lists or use the Blinkist app to find good ones. Run a very simple easy business as a side hustle for a bit to practice. Work in a seed-stage startup. You'll pick up a lot.