Toughness is a good thing, yet it is considered good only in men. When a woman is tough, men can't stand it. I like being tough and smart.
Don't try to be all things to all people. Concentrate on selling something unique that you know there is a need for, offer competitive pricing and good customer service.
What was your greatest challenge? Staying alive as a business, staying ahead of the game, and melding my business life with my personal life.
The biggest mistake was that I didn't hire all the right people. I should have done better reference checks. I should have defined the roles in a much more professional manner. I hired people who just couldn't do the job.