If you don't want to go to the training class, you can learn by yourself. There are many ways to learn. You can choose the way that suits you and complete the task.

However, the premise is that you must have strong self-control, perseverance and fear of being provoked. If you have questions you don't understand, you should actively ask teachers and excellent people, or search for answers online.

If you are a child and you don't want to restrain yourself, you will instinctively dislike attending the training class. You should communicate with your parents calmly and patiently, be strict with your own reality and strive for a peaceful solution. Never decide for yourself, engage in guerrilla tactics with your parents and deceive your family;

In fact, although the training course costs money, you can restrain yourself through others, which can alleviate the boredom of some knowledge and make it easier to learn. But in any case, personal efforts are the main thing.