"I think I have my fitness program figured out.," I told him. "Well, almost figured out. I don't want to be too rigid, but I want to be more deliberate about it. I have a couple of goals that seem achievable, but I'm not sure. I'm probably overthinking it." "Yes, of course you are," Bob said. "But if that makes you happy, overthink the crap out of it." True story. I overthink. Then I overthink overthinking. What's wrong with overthinking, I think. Then I think: is overthinking sucking the life out of it? But underthinking may lead to abandoning the whole thing and sitting on the couch with a bag of Cheetos. (I overthought that sentence for quite a while.) I hit a big number this year. I've been practicing saying it out loud to people, but it still comes out as a question instead of a statement. I'm sixty? I am sixty. Shudder. Most of the time I don't feel that age . But this year I decided to go on a mission to keep ...