The French exam is called "the first exam in the world" by many people, and the difficulty is beyond doubt. So it's better to sign up for a remedial class, but I haven't heard of the institution you mentioned, and I can't give you any advice. The gambling class I signed up for, if I don't pass the exam, I will drop out, which is quite reliable. Moreover, his family's class system is really super suitable for people with poor self-control. The class supervises learning every day and can't stop.