Perception, after all, is not simply a matter of what you believe about yourself, it all encompasses what others think about you, and what has been thought of you historically. I say we can pay attention to those other dimensions of our identity - class, gender, sexual orientation, geographical region - while at the same time understanding how our historically produced racial identity continues to serve, or undercut us.
If someone says you are not capable or can't have something, keep pushing because you can. And it's not because you're special, but it's because everyone possesses the ability to be awesome. The reason people say, 'No, you can't,' 'God doesn't want you to,' or they make laws is because they know that you have that in you. And they are scared to lose their superior standing.