Hermit girl, you don't have to show your actual birthdate, I wouldn't show mine for fears of identity theft.
I am going to be 59 this year.
Honestly, I don't identify with being "middleaged" any more. I'm looking to retire!
What to do? You MUST apply yourself to something that YOU think is meaningful for YOU. What are you doing? are you just making the motions as you rush through your day to day routine or are you walking the walk and talking the talk. That is, the walk and talk that are important to YOU.

Meanwhile, yes, since your body IS the vehicle that takes you through this earthplane, you have to take care of it... exercise, eating right, and that last thing again, your soul... Is your soul happy with your life?