About my future

Yesterday my mom told me she wants me to take part in the TOEFL examination. That means, if i get a good grade, I can go to America to study. Many Chinese students have gone to America this way, because they cannot do well in schools' tests, have more pressure about the college entrance examination or they have a gift for the English language.
But Chinese people think going abroad before the college entrance examination is evading the examination and they think if a person goes abroad to study after he finished the study in Chinese college, he will be more successful. It's true. This speech? is so important to me because it can change my life. I'm in the middle of my class but I want to improve. I also want to get rid of the simple life in China.
I'm so confused about it and don't know what to do:(