Stop blaming your misery on your parents.

As a child, you depended on them, and perhaps they failed you.

As an adult, you have the capability to choose your actions.

You can choose to be miserable because of your terrible childhood and wallow in self pity until you become bitter and hated by the general public, or you can choose to rise above and be better.

Whatever you decide, accept that your actions are your own and having a bad childhood is not a license for you to behave like a jackass.