When I was a child I assumed that all the adults running the world knew what they were doing. Now that I am an adult, I am under no such illusions. Just look at the current British government. They clearly don’t have a clue. A more mediocre bunch of individuals would be hard to find.
I’m going to let you in on a little secret. Most of us who are running businesses had no real idea what they were doing when they started, and still struggle with decisions now. I’ve been making a full-time living selling my own software since 2005. But when I launched my seating planner software, I really had no idea if I would sell a single licence. After 17 years I know a lot more about my market and running a software business. But things are constantly changing and I still don’t know day-to-day if I should be spending more time on SEO, partnerships, Youtube videos, new features, a better website, or thousand other things I could be doing. A lot of guessing and gut feel is still involved.
It is easy to read 20/20 hindsight accounts of successful businesses and assume they they knew exactly what they needed to do at each stage. They didn’t. Running a business involves making a lot of decisions under great uncertainty in a constantly changing environment. So if you want to start a business, don’t be put off by not knowing what you are doing. No-one does.