I know it's taboo to talk about low self-esteem because it makes other people sad. (I made my first therapist cry.) Unless you are a modern master of the self-denigration that's considered holy in our world -- it's totally acceptable to find fault with yourself if the message is draped by a heavy blanket of good intentions for self improvement.
I'm writing this as my perfect child watches cartoons on the floor. I don't want to teach her any of my fucked up self-loathing concepts. I don't know if that earns me self-improvement cred, and I don't care.