Once when I was in the sixth grade, I asked my sister to make sandwiches for my school picnic. A string of events occurred, and she declared I was selfish.
I realized I was more interested in getting my work done, rather than the feelings and responses of other people (understanding emotions is a must read). The acknowledgment that I was a bad person and people knew about it was suffocating. I understood that I would be left alone if I did not change.
I consciously tried to become a better person by caring for other people and by showing that I cared.