By Gail Supplee Tatum, Columnist, The Times Do you give yourself enough credit?  Most of us don’t.  If we did we would feel so much more fulfilled.  It would give us a purpose.  If you struggle with feeling a sense of purpose, consider inspiring someone else. The saying goes that it’s better to give than to receive.  This certainly is true in my life. No matter what our age, each of us is...