I am not unaware of my shortcomings, but I try not to beat myself up too much. That's what enemies are for, lol.
I'm an INTP. My confidence is real, my arrogance is real, and my internal critic is a real loud obnoxious a-hole. He's constantly trying to convince me I didn't think or research enough before I spoke or acted. I'm certain without him I'd be an even less tolerable person than I am currently.
True. I always put myself down for not doing something that I earlier talked myself out of doing or say I could have done something better.
Me, too!
Yes, I am.
I'm a musician, and find a great deal of joy creating something.
But then I'll listen to it again, and think, meh, it could be better.
Even the songs that other people have said that it was good, I still feel like I could have done better.
I can constantly badger myself over things I see, but I can miss something I was blind to. I can hear someone's criticism and disregard it as untrue for its false assumptions but will echo for weeks months or years. Furthermore, probably missing some critique I should hear, but it's just as hard to tell someone in earnest as it can be to listen. I guess I know I'm biased so I get ruled out, and I don't have unbiased friends so that's a bit lacking too.
That quote is false. Someone's ego and capabilities make a huge difference in how they judge themselves.
We are generally our worst critics because nobody likes self-criticism. Others, in my experience, are much freer in their criticisms and actually, instead of disliking it, love the activity. Consequently, since we tend to be good at what we like, they are better at it.
Personally, it applies even more so, as I like myself so much that finding flaws is an arduous, distasteful activity. There are so few flaws it hardly seems worth the effort.