Basically, I don't want to be an engineer in the US, but I have no choice but to go to college in the US due to my situation. What would I need to do to take steps toward working abroad? Preferably in China. I can imagine learning Chinese is a must, but what about citizenship and other things?
EDIT: Also, what other options you want to suggest?
I have a stupid question. I doubt that this would make a big difference, but like, if my grandma is like 2 percent Chinese, would that help my family and I get citizenship, even slightly?
Very unlikely it would make any real difference. Even if your parents were Chinese, if they had naturalized to another country it wouldn't guarantee your ability to get citizenship (though if they had retained Chinese citizenship then yes, you would get citizenship).
I figured that would be the case, but good to know. Do you mind if I keep in touch and ask you any questions I come up with?
By all means, feel free. Just so you know I do not [yet] live in China myself either, but I am happy to provide what information I have.