Year 13 mocks help

I just got my maths mock results from early January mocks and I got a really really low C (like cusp of D low) in maths, and I’m not even sure they’ll give me the C because they’re still altering boundaries. I’m super worried because I think I’ll probably get around a C in economics and then maybe a B/C in geography. So worst case scenario I have CCD.
I really need advice, when I got my maths results back I genuinely felt my stomach drop and I realised I was kind of doomed. My predicted grades were really good last year because I understood year 12 content a lot better, and I also lowkey think my school inflated our predicted a bit, so I applied to good unis and all my offers are around AAA now.
I’m so scared because I feel like I’m not going to meet my offers. I literally feel sick idk how I got this bad
Does anyone have any advice on how to improve because I only have about 3 months left and I literally need to move up 2-3 grades. 😭

I just got my maths mock results from early January mocks and I got a really really low C (like cusp of D low) in maths, and I’m not even sure they’ll give me the C because they’re still altering boundaries. I’m super worried because I think I’ll probably get around a C in economics and then maybe a B/C in geography. So worst case scenario I have CCD.
I really need advice, when I got my maths results back I genuinely felt my stomach drop and I realised I was kind of doomed. My predicted grades were really good last year because I understood year 12 content a lot better, and I also lowkey think my school inflated our predicted a bit, so I applied to good unis and all my offers are around AAA now.
I’m so scared because I feel like I’m not going to meet my offers. I literally feel sick idk how I got this bad
Does anyone have any advice on how to improve because I only have about 3 months left and I literally need to move up 2-3 grades. 😭