I like math, but I don't like math teachers.

Actually, I have the same experience as you. I hate my math teacher, but I love math and prefer it. This mood has been with me for three years in junior high school. In fact, you just entered junior high school, and you are a little uncomfortable. You will miss your old math teachers and compare them. If you really like math, you can learn to ignore the teacher, deal with it superficially and teach yourself. You shouldn't go to the training class. You can read books and do exercises by yourself. Mathematics in junior high school is not difficult. Just fill in the questions at the end of the third grade. Come on! Continue to enjoy the happiness brought by mathematics and the sense of accomplishment in solving problems.