I've tried this situation before. You can try to be enthusiastic about math and ask your classmates questions. This will make you feel a sense of accomplishment, because your classmates have come to ask you questions, and gradually you will work hard to get the correct answers for your classmates. I believe your math scores will come up soon, but the most important thing is to practice doing problems more and learn to draw inferences from others. At present, the tactics of asking questions about the sea are more useful to you, because you used to be around 130, which proves that you still have a foundation. As long as you are more confident, it will come naturally.
Hope to adopt