I agree with this, as well with others who believe self-esteem has nothing to do with your ability to set goals or accomplish things.
I have a healthy self-esteem. Always have. If you were to ask me why I’m this way, I couldn’t tell you. Just like I can’t tell you why my feet are a size 9 or why I’m right-handed instead of left. My self-esteem just is. Although it is the case that I am fairly accomplished in life and have a lot to be proud of, honestly, I still think my self-esteem would be intact if I were significantly less accomplished. IMO, being able to accomplish things is a by-product of having a good self-esteem. Not a cause.
I think the difference between someone with self-esteem and someone without is the strength of their built-in coping mechanisms. When I fail at something, my brain does a great job of protecting my ego from the stress this failure causes. For every embarrassing mistake or flub I make, there are eleventy rationalizations that my mind can generate that makes me feel better. And it’s an automatic process; I can’t remember ever consciously making this a habit. There are probably some major tradeoffs to the way I’m wired, but a positive side effect of this is that it takes a lot for me to get down on myself. I always have my own back, even if no one else on the planet does.
If I notice something about me that is less than perfect, instead of beating myself over the head over it, I give myself two choices that I consider equally valid: fix it or accept it. Anything else serves no purpose and is a waste of energy.
So my advice to someone without self-esteem is to try to strengthen their internal defenses. Maybe start by thinking of an issue that causes you shame, guilt, or self-loathing, and write down things a kind person would say to make you feel better. Then start a habit of reflecting on that list everytime that issue comes up in your mind.
Bad thought: “I look like a whale, my cellulite is hideous, and no person in their right mind could ever be attracted to this body.”
Corrective thought: “Persons much bigger, and much cellulitey than me, have managed to find love and attraction, and if they can do it, so can I.”