You don't have to be invited. On the one hand, look at the objective environment, such as whether you can find a great god as a friend, or whether the travel coach can fulfill the responsibility of guidance. On the one hand, it depends on your own situation. For example, if you want to train in a planned way and set a goal, a good personal education can make you get twice the result with half the effort. If it's just for fun, take your time, don't blindly compare, and it's no big deal to take a detour.

In addition, private lessons can generally be bought during class hours, or they can be bought less first.