I signed up for a remedial class at school before.

Interest classes only teach dance.

The remedial class not only teaches dance, but also teaches you how to teach others to teach dance. Then you will be asked to record a teaching dance by yourself and take the coaching exam. Generally, the coach can pass the exam as long as he pays enough money.

However, dancing is not enough, but long-term practice is the key. After three years of not practicing, I mean I'm back to the starting point.