There's a great quote that I read today in my L2 Coaching chapter on 'Strategies to increase change readiness and soothe frustrations' by Theodore Roosevelt. A lot of people refer to it as the "Man in the Arena" quote. And it goes like this:

"It is not the critic who counts. It is not the man who sits and points out how the doer of deeds could have done things better and how he falls and stumbles. The credit goes to the man in the arena whose face is marred with dust and blood and sweat.

But when he's in the arena, at best, he wins, and at worst, he loses, but when he fails, when he loses, he does so daring greatly."
Critics, no matter how knowledgeable or insightful, remain on the sidelines & do not face the same challenges and obstacles as those in the arena.

This quote now will be part of me forever. It will be a reminder to focus on my own actions and efforts, and to ignore the criticism of others.