Denvr-----OK, I see if your'e already 55 you should make 81. That means that at 55 one is 2/3s done.
Now I'm not a pessimist, simply a realist. Time passes without regards to one's attitudes. And once so much time has passed one is old. Some things exist objectively. You can't "attitude" that passage of time away.
I don't go around thinking of myself as an old guy but I must admit that I'm getting old if asked. Just this year 2 of my friends had heart troubles and a third died from a stroke. This kind of thing wasn't going on around me when I was young.
Anyway have a great time being a healthy, creative, well-balanced old guy.