You say it’s difficult, but you yourself will learn the key principles from a single course. Learning to create a successful product is much harder and require

You say it’s difficult, but you yourself will learn the key principles from a single course. Learning to create a successful product is much harder and requires a much rarer set of skills. There’s no course you can take that will give you this ability. Knowing lots of details about accounting and business administration won’t help you unless you can make something that sells.