Why was I born here?

I was born with a loving, caring, and forgiving family. To most people, that’s a blessing. But to me, it only makes it harder for me to make them pleased, or even tolerant of anything. It only makes my life worse. I already hate me, so does everyone else, so my own family were like the only people who I could trust at all, and now they are like people I never even knew. It just sickens me to see what I have done to these great people, and what I can do to all those with a pure heart, unlike mine.