Is it crazy to pick a new name out of thin air ? Absolutely not ! Why would it be ? It is such a wonderful luxury, as women, to be able to control our identities and sense of self. I speak as an immigrant who completely changed her name around several years ago to a combination of various family names , with an Irish name stuck on the end of it all ( where did
that come from ? ) ! Our "labels"/our names, are deeply personal and intimate to us. Studies show that our names influence how other people treat us. They affect our self-confidence and self-worth. This is why so many Native Americans have kept their Native names. It is important. Also as an immigrant, I remember stories of people coming through Ellis Island and being assigned names. I have a friend who's father was given the name " Italiano" because his was too "hard".
I would only suggest one thing, that you start by using your current name as a "middle" name for professional reasons. It doesn't have to be legal. Just say or sign your name as" K Smith" for a short period of time. Then as people get used to " K Smith" , you can then start dropping the K when referring to yourself and just say Smith. That helped me tremendously when all of a sudden I switched 3 , yes, 3 of my names and added 2 more all in the middle of my career with a huge customer base.
I leave you with one thought, I saw an interview recently with a couple that has 7 kids. They couldn't think of a name for the fifth, so they named him Five. Be a role model for that child. : )