I think the most important thing is attitude. Your question exposed your feelings. Actually, mathematics is very simple. It's simple for you. For example, the direction and angle of thinking when encountering problems is the ability of logical thinking. It is suggested that you should think twice when doing mathematics, and whether there are different answers to the same situation. Secondly, in class, you must listen to the typical questions well. Don't focus on the whole 45 minutes, but always remind yourself to follow the teacher, because skipping some small details will definitely cause problems in the future. In fact, formulas are very important, but when you have a basic mathematical way of thinking, you don't have to recite them.