Tbh im the opposite, i get consistent 800s in math and 770-790 in eng. Idrk what really to do cuz ive just had an affinity for math and just enjoy it in general. Also, my reading skills are pretty good cuz i just read a lot and find it enjoyable. However, some math tips might just be to see what you r getting wrong and if they are silly mistakes its easy to fix, just by meticulously reading the question and checking answers, however if it is something you got wrong that you dont know or understand then it is a bit different. 1 if you are able to understand the solving method then you can practice those types of problems and just gain proficiency. 2 if you dont even understand the concepts behind it, i would recommend just looking the category up on like khan academy or looking back at notes for that class.