I run a small B2B product. The biggest lesson I have learned that most clients do not care who you are as long as you can show them a good product that meets their requirement. Yes, there are a few who care about who you are but those have never turned out to be good clients in my specific experience.
So don't focus on the "who you are" part that much. You are who you are. You cannot suddenly become Steve Jobs. Think about it this way. You know Steve Jobs or Wozniak or zukerberg not because of who they are personally but because of the great products they built and shipped.
Focus on making a great product. Focus on talking to those B2B users and convicing them that the product they need is what you are selling. Also, focus on doing this at a very personalized level. Get on the phone, go see them in person. Yes this sounds not very scalable but this is what you need to do in the beginning.