Just a side note for anyone trying to make money from their photography: DO NOT UNDERESTIMATE THE POWER OF NETWORKING!
The best paying gigs I've gotten have been through personal contacts. In person I'm very much so an introvert.
I'm not socially awkward, but I prefer being alone than being around others. As I reflected on my past jobs, I realized that the highest paying positions don't necessarily go to the most skilled people, they usually go to the "talkers"; the people that can step up, speak clearly, energetically, and inspire confidence. Recognizing that, I started to really look at the small circle of people I associated myself with and found a few people that are really outgoing and were down to put in the leg work of getting a company off the ground. My LLC is a formal partnership between myself and an old friend from middle school.
I handle all of the official paper work and contract negotiations but when it comes to introductions and all the high energy "people person" talk, I fall back and let my business partner take the lead. Basically if you have the skills, and the passion, but don't necessarily have a very outgoing personality, it's OK. Just make sure you have people around you that have the skills you don't have so that when you work together your skills complement each other instead of causing you to clash. I see way too many people with huge dreams trying to accomplish everything alone. Self awareness is key. I haven't made it to where I want to be in business but I'm slowly seeing the results of my hard work.