People laugh at me when I say I want to be a doctor, should I give up that dream?

Don't ever give that dream up! It's ok to have fun AND be smart. People who tell you to give that up are just saying that because they don't have the same kind of determination as you, because it takes that to become a doctor. I was a cheerleader in high school and now pursuing a career in the FBI and people always tell me to be realistic too, but dont let it get you down. Just keep being yourself and as long as you keep your grades up, you can do anything you want! :)