Would it be hard for me if I go to the States and try to find a job, a good one?

I'm from Mexico. I have a bachelor's degree in finance. I'm also thinking of getting a master's degree. I'd like to go there and start a brand new life by my own. Obviously, I do not want to work at Mc Donald's (which is not bad) but do you think I could find a job in something related to the finance field. Or just the fact that I am not US citizen would be already a problem? Hope you can help, do not be rude in your answers. Thank you guys.