Having an idea is the first step in a long process of getting an idea to become a viable business.

I would try to work for a smaller company where you can be closer to the business side of things. See how a business is run. Learn. With larger companies the "fulfillment" side is usually isolated from the "business" side, so you may not get to see the granular business process.

And then use that experience to help build your business.

I worked as a consultant for a small company for 5 years and not only did I learn the business side, but also learned how to be a consultant, not just an IT guy. After the 5 years, I launched my first business...