I got pretty good, and was able to have some "subscriptions" back before that was a thing, delivering it to people at work, but in the end I was barely able to cover the costs once I'd factored in running the oven. I then moved to the northeast , where people care about bread a little more, but again are usually quite sensitive to convenience and price. The groceries here have average bakeries in store, and produce cheap reliable bread.
As for cake baking, that's a whole different ballgame. I've had a friend who tried that and she had a very hard time. People typically were extremely price sensitive, and were very hard to please. It reminded me of the tattoo business: a few rockstars charging 10k for art that gets thousands of upvotes on social media, then a mass of people doing $100 specials for customers who are never quite happy. Kind of a bummer, so my friend gave up after a year and doubled down on programming as a career. She now keeps baking firmly in the "hobby" realm, since while she loves it, she knows it's extremely hard to make a living doing it.