The whole "Race vs. Intelligence" issue is taking control of my life, what can I do to stop this?

I can't take it anymore. I can't. I want to cry. I am thinking compulsively about this whole situation. I am black, and obviously get judged based on my intelligence. I'm sad. I just want this to end. I KNOW FOR A FACT, most people automatically and unintentionally will ume I am going to be "slow" or just one of the "dumb ones of the cl". I'm tired of teachers expecting less out of me. I just want to move out of the earth. I don't want to die, but I just want to disappear. I'm not illiterate.