If you want to be better, don't compare yourself to others, compare yourself to who you were yesterday. A lot of people want to improve themselves in big ways but can't even tidy their house or be in control of the simple things. They don't think they are big wins. That may be true but if you humble yourself and start small you'll experience what many economists have called the Mathew Principle
"For to every one who has will more be given, and he will have abundance; but from him who has not, even what he has will be taken away. — Matthew 25:29"

As soon as you start making a bunch of little wins you'll have more in life lining up for you, but it first takes a humbling.

When it comes to competition we always tell kids "It's not about winning, but its how you play the game." This is what you're talking about in the article when you say that professionals don't complain (they do sometimes and get ridiculed, especially in wrestling).

Anyway great article. It aligned with what I've been thinking about lately.