I'm reading a book called, "Disciplined Entrepreneurship: 24 Steps to a Successful Startup" written by Bill Aulet.

The 24 steps are broken down into six categories:

1: Who is your customer?
2: What can you do for your customer?
3: How does your customer acquire your product?
4: How do you make money off your product?
5: How do you design and build your product?
6: How do you scale your business

Your technically asking a good number of questions and I'm thinking this book might be a good starting point for you.