What Does Aging Really Mean?

I turned 50 a few months ago.  There.  I said it.  (Or wrote it.)  I’ve refused to acknowledge the fact that I’m past the half century mark.  Most likely, my life is more than half over.  What do I have to look forward to besides wrinkles, sags, and memory loss?  I’m struggling to find anything good about aging.  I’ve tried on a few platitudes for size.  “I’m grateful for all the good things in my life.”  “Life has been an amazing journey.”  Blah, blah, blah…  My children are wonderful, happy, and healthy.  I have a successful career.  I don’t have the financial worries that plagued my life in younger days.  Yeah, great.  I also don’t have my youth.  That was worth something, wasn’t it?