However, we must have the right direction.
Never teach yourself blindly.
After all, China is still an exam-oriented education.
Sometimes you can learn something real by self-study.
But I may not be able to cope with the exam.
Just like some foreigners come to China to take an English test, they still can't.
Pay more attention to the main points of the exam.
Living in such a country
That's the only way
good luck