How do you balance your job with your family and health when you are getting older and older ?

I'm 71, have a husband (I'm a woman--'John' is just my Clark Kent alias), 3 adult children and 5 grandchildren.  I'm retired now but I used to work part-time or full-time. And yes, I'm getting 'older and older.'  But it's never been about "balancing" my family and health while I'm getting 'older and older.'  I don't think about life in such a linear way. It's just been about taking life as it comes and enjoying it along the way.  I used to be a worrier, but no more.  I'm happier now than I've ever been.  And I feel healthy, too.