Connector (a la Tipping Point), entrepreneur, investor, happy mother, and soccer player
Serendipitously fell into it...
Groupon, Facebook, eBay (but it's not a start-up anymore but I was around when it was)
Not having history to refer to and having to create it for new products and markets.
Thinking they know too much.
Believe in yourself and your instincts, take care of the people that work with you, and find things you are passionate about (then you want to stay up all night working on it).