I don't think you are a nerd...anytime I know a science-type person, they are so into their stuff that they seem standoffish. I don't know or have heard of any intelligent chemist or biologist that was a social butterfly. I think they are always "thinking" that people get pushed out of their mind, so does time. Be yourself, you are not your mom, brother or father and never will be. You don't want to follow in their footsteps, you want to make your own footprints. Pick up that science book and read and read. Someday you will be a great scientist and you will be yourself to boot!!