Whether or not I am good or evil, how I define good and evil, and how others define them can be best explained by my avatar. "Beauty is in the eye of the beholder."
Do I think I am good? Of course I do. Does an evangelical priest or a right-wing whack-job think I'm good? Absolutely not. I share my bed with men, am pro-choice, believe in equality for all, etc. etc., so by that, the priest and the whack-job consider me evil. Yet, I am sweet, honest, helpful to those are helpful to me (golden rule), etc., so I consider myself to be good.
To determine whether something is good I rely fully on my own thought processes. Religion, philosophy, natural order, and the law have absolutely ZERO effect on what I perceive to be good or evil. I don't need God to tell me not to sleep around, kill, steal, or lie. I don't need the law to tell me not to drive backwards, kidnap children, etc.
The same is true of how I determine something be evil, plus whether or not it maliciously harms someone else. This can be physical or mental harm. For example, the thread I started about John being harassed at school by a prick he doesn't even know. The scumbag is maliciously harming John, who did nothing to warrant such harm. This makes the piece of shit evil. However, going back to my previous quote in my avatar, an evangelical priest might consider the dirtbag to be good because he is "trying to save John from his path of destruction". Pure, manipulative, bullshit to me, but gospel to others.