Hey Joy,
I just turned 53. Age REALLY bothers me also. I weigh the same as I did 30 years ago ,and I'm in pretty good health, and also look young for my age. I think was bothers me the most is the wrinkles ,and lines on my face (thank goodness for botox) . I'm so much better mentally than I was in my 20s ,and 30s. Age effects all people different. I can do a lot more than some of my friends in there 30s. Before the bike, I was a runner. I ran the Portland Marathon at age 51. 40 ,and 50s are good ages to be. You sound like things are good for you ,so embrace the fact that you are healthy,and strong.
Suzie