can you dramatically change your gsce grades?

for my nov mocks i got : ( I want 6/7/8 for gsce)

eng lit - 6 (1 mark off a 7)
eng lang - 6
math - 4 (ive always been bad at math)
german - 5
re - 5 ( i got a 2 last year)
computing - 3
science - 5-4 (I WAS SO UPSET ABOUT THIS! i usually get 7/6 but i got a U in one paper and it dragged it all down)
business - 5

for my nov mocks i got : ( I want 6/7/8 for gsce)

eng lit - 6 (1 mark off a 7)
eng lang - 6
math - 4 (ive always been bad at math)
german - 5
re - 5 ( i got a 2 last year)
computing - 3
science - 5-4 (I WAS SO UPSET ABOUT THIS! i usually get 7/6 but i got a U in one paper and it dragged it all down)
business - 5

as long as you're motivated and willing to put in a LOT of effort/work, I reckon it is possible. what subjects do you feel you need most help with, any subjects where you're a bit stuck for resources?

yessss you can in my mocks in yr 11 i got a 4 in business and mostly 7s and 6s. I turned it around and managed to get wayyyy above it
you've got thisss🙌

german and computing mostlyyy