Be yourself. Provide value. Be passionate about being yourself and providing value... whatever that value is.
The thing is, you can't be "everything to everybody," so you're better off simply being "a LOT" to a dedicated core of people who really dig what you're doing.
As a bonus, that's going to help you what your daughters ask that question... and you'll be able to look them in the eye and say "Yeah, but I did do my BEST!" If you did your best, that's about as much as can be expected of ANY of us!
Oh... and cool that you're setting up a witness!