According to my years of experience,
1, I recommend you to read My First Mathematics Book and feel the thoughts inside.
2. Practice the math problems in categories, and each type can be twice as much as other students.
3. It is suggested that you master scientific memory methods to improve the memory effect.
Finally, I hope you understand that cleverness is often difficult to change (personal experience), but cleverness is not equal to ability. Although you are a little inferior in math, you can remain confident and show your ability in other areas.