When thinking about starting a business, an excellent place to start is to think about what you’re personally great at and what's easy for you. You’ll likely enjoy building a business doing what you’re great at.
So start something, anything that you're great at. You'll learn a ton from the first business that you start.
If nothing is tying you down, and you're interested in entrepreneurship, try it out. Start a low capital business where there isn’t a ton of risk, or start a business while you're working full-time at another job. The best way to know whether you are an entrepreneur is to dive into the pool and try to swim.