Today I am 60. It is an odd feeling. It is kind of like the difference between nine and ten. It is only a day, but somehow, you jump over a line when you turn 10, and I feel the same way today. Saying I am 60 sounds, somehow, much older than saying I am 59.
Which is all very strange, because, in truth, I still feel the same as I did at 40. (I am not so naive as to say 25, because I am much wiser now and that is gained through life experience and not a certain number of years on the calendar. And I have definitely had plenty of opportunity to get wiser, so I know I must be at least 40!) But I certainly don't feel like I've had six decades of life, and my wisdom quotient sadly does not match what I would have expected of a 60 year old, but thankfully exceeds my 25 year old self, at least.