This may seem very unrelated but I've had self-esteem issues all my life. I think I have a poor attitude towards people and I'm too scared to go out into this seemingly dangerous social world. I don't know how many times my parents have told me off and left me in tears because I didn't listen to them - because of that I've found it difficult to connect with anybody, even my siblings.
(It seems paradoxical really; the telling off is supposed to
stop me from making the same mistake but instead it makes me hide in a shell because I'm
afraid of making that mistake)