author here, I agree, but i feel like i've had so many self esteem issues growing up, its the only way i can believe it.
Confidence is just from working really fucking hard.
but again these are the lies i tell myself :)
i expect personal experience to be the most heavily weighted source of confidence
most people have limited experience. Thus if you are deriving confidence mainly from experience, you will have hard time bootstrapping confidence for a very long time. 2c
which is definitly the case for me, but at this point it just comes from the fact that ok, i just know i have the capacity to work hard so i dont the confidence will come