The most important thing to prepare for the exam is your mentality. Just prepare well and study hard. Training institutions will improve your ability, you can't just want to sign up for a class and pay the money.

Career education is also possible. Like others, Chinese painting and painting are also possible, mainly depending on what kind of teaching atmosphere is suitable. Personally recommend chalk for public examination. At first, I thought their three-hour class was too long. When I got used to it, I felt fine, and I liked the knowledge points and methods. Now there are some places where you can get off work by cable, which is quite good.