It's funny, but I personally wouldn't call not being able to pay the mortgage and have health insurance for my kids "successful."
A person's value depends on what they contribute to the world--not what they acquire. For instance, an extreme example would be Mother Teresa. She owned nothing, but did wonderful things for others, and she'll always be remembered for that. She is what I would call a success at living a meaningful life.
Get your value from your work ethic, the love you give to your child to help him grow up with good self-esteem, and the love you share with your husband. No matter how the economy goes, no one can take that love away from you....which shows it has real value. Houses come and go...the things of value, that make us who we are, last.