"I'm hoping that my daughter will embrace her inner geek and want to change the world." And what if she don't have an inner geek...?

You didn't waste time. You lived. And now you are judging the younger yourself, and saying "I made mistakes", but you can't know what life would have been if you studied maths. Maybe this article would have the same title, and end with "Don't make mistakes like I do, follow your heart and study art".

But we love to have girls in IT. Welcome.