I'm used to working alone. Frankly with some of the actors I've worked with, I've felt like I was working alone.
When you work alone, you need to socialize at some level.
Freelance isn't for everyone - you've got to be aggressive and enjoy working alone. But you could make more money than you ever imagined.
Most inventors and engineers I've met are like me. They're shy and they live in their heads. The very best of them are artists. And artists work best alone...