Prejudice is something we learn when we are very young. We learn it from society, we learn it at home and from our friends. But in the end, it doesn't matter where we pick it up, as long as we acknowledge that we all have a tendency to have a negative instant reaction to people who are different from us. Take pride in the knowledge that at least you are not part of the problem. Fight your knee jerk reaction to judge others, fight it with thought, logic, and understanding.
Racism is an illogical learned emotional response to people who are different.
Have the strength to think for yourself, and you will see that it makes no sense. Just because I'm into girls being strong, people think I'm not interested in dating. Just because I'm quiet people think I'm crazy and unsociable. Just because I'm smart, people think I'm a geek. Just because I'm a girl, guys think I can't do anything.