I am from a very large dysfunctional family and I always felt that no one truly cared for me while growing up. I felt that I seldom had my parent's attention unless I went to them and demanded it. I was always afraid of some of my siblings and their abuse. I never felt I was even good enough for God and all His mercy.
In my adult life, I'm learning that the more I depend on God the less abandoned I feel. I pray more and I feel more content. I still cry in church when we sing some of the hymns, but I'm doing better thanks to some wonderful counselors and a lot of great reading.
People will always be a disappointment in some way or another. I'm trying very hard to learn to deal with disappointments and my anger.