The growth that an artist seeks is a fine combination of mastering craft, garnering an audience, maintaining one's mental health, and working mightily from a ever-expanding base of experience.
To keep children healty, it's important to keep them active. Of course you can control what goes into their mouths, but it's also about putting the active back into family activity. Go outside with them, live in the moment and encourage them. That'll help you find fulfillment in your life as well.