Specifically what do you think it is about you that qualifies you as either good or bad?
For me, I think I'm a good person because I'm an empath. I feel intense emotions in other people's perspectives and I feel that helps me to understand people better. Therefore most of the time I will position in my mind how my actions/words would be best said so as to minimize negativity. I don't actively seek to harm others and I don't consider myself to be better than anybody else.
I take that back, I do think there are people I am better than, but nothing to do with race or sex. Simply because me not wanting to hurt others makes me better than those that do.
On the flip side, I think I'm a bad person because if you've fallen off my empathy radar than I will never give a fuck about you again. Its harsh, and I can't help it, but if something happens to make me stop feeling emotions in your point of view then I can be devastatingly nonchalant as to what happens to you.
This seems like a easy question until you have to define you own actions. I think if you do something you don't feel good about but continue to do it afterwards then perhaps that's bad. If you know its wrong and you don't feel bad about doing it or even enjoy it, then that's a step further.
Being good to me is trying to treat others how you want to be treated by putting yourself in their shoes or trying.