It’s that time of year, the time of year that I give up triathlons. Yes, I know that everyone who knows me laughs about this. I’ve done over a hundred triathlons since I started in 2004. And every year around this time, I say I’m done. Often, this is triggered by an Ironman competitions. My first Ironman, I was disappointed in my performance and as I drove away from it, swore I would never do another one. I looked at the four toenails that had gone black and…