If you are bored and afraid of mathematics, you will fall into a vicious circle. You must jump out first. You know, it doesn't matter if you learn badly. No one can know everything. Math may be your weakness. Just because you say you are poor at school now doesn't mean you will be poor in the future. Straighten your mind and face up to the fact that you are poor at math. Personally, I think the teacher is still the best way to improve your grades because he knows where your level is. In view of your shame, you can find a training class, make up lessons after class, and make up for it bit by bit. In addition, there are improvements in learning methods. Look at how your class learns math, see how they learn, ask them and learn. It takes time to improve your academic performance, so don't worry. Maybe you have studied hard for 1 month, but there is no result. You can make a fuss. If you keep looking, you may succeed.