Develop & Plan
Develop and change your idea based on what you’ve found out about your customers’ needs before investing. Deal with any problems you’ve found with your product or service, including the way you’re planning to make and sell it.
Go back to your customers and test again.
Keep doing this until you’re confident that they’ll be willing to pay what you’re asking, and that you’re meeting their needs.
If there’s no real demand for your idea, think about changing it completely. Is there another product, service or market that uses your skills and resources in a different way?