There was a long time in my professional life that I was not happy, and there was nothing anyone else could have done to make me happy. There was a big stretch where I was very sick, and I was very hurt. Those charged with taking care of my health and well-being weren't very good at their jobs. Or maybe they were too good at their jobs.
I don't measure myself against my coaches, I don't measure myself against my teammates. If I'm doing jiu-jitsu for sport, I don't measure myself against the guy I'm rolling with or whatever belt he is or how many stripes he has on his belt. I measure myself every day against the guy I was yesterday.