I've always wanted to learn soft pen calligraphy. Do I need to sign up for a class? Or do you practice slowly by yourself?

It depends on your own learning method. Some people like to teach themselves, while others like to enroll in classes. But on the whole, it is better to have a professional teacher to teach. Because many people don't understand, they need guidance from others. If you study by yourself, you will be very tired, because many problems are solved by yourself. . . I hope I can help you.