Environment

The environment has a major impact on a child.  Both genes and environment affects a person's well being but while we cannot control genetics we can definitely be careful on how and what we teach a child.

The world is unfair, and some children bear the burden of not being cared for or taught of things we needed to learn to be well-adjusted. We can always blame our parents and all those people who made us feel terrible about ourselves but in the end it wouldn't change the kind of person we've become. Maybe it can even cause more damages...

You should try to understand why you are the kind of person you have become and you definitely have the potential to change your circumstance.