Feel like a messed up my biology paper 1 GCSE

For a bit of context- biology has always been my best subject. No matter what happens in mocks or whatever I can always count on biology being the one subject I get a 9 in. I revised so much for paper 1.
Yet it had nothing to do with the actual content and was the *****iest paper ever.
I thought I had done okay when I left. Like there were a few mistakes or questions I was uncertain on but it was fine. I felt like this after my yr 10 mocks and got a 9 so I thought it was fine.
Then I went online and saw ppl talking and realised that I had forgot to mention smt on the 6 marker and messed up on a calculation question. This is excluding anything else I could have gotten wrong.
So now I feel so horrible. I want to become a doctor and take bio a level too so it just feels 10x worse especially cause bio was the subject I thought I would have done well in. I’ve literally lost all hope for a 9 and feel like there’s no point in me revising now cause it just won’t pay off.

For a bit of context- biology has always been my best subject. No matter what happens in mocks or whatever I can always count on biology being the one subject I get a 9 in. I revised so much for paper 1.
Yet it had nothing to do with the actual content and was the *****iest paper ever.
I thought I had done okay when I left. Like there were a few mistakes or questions I was uncertain on but it was fine. I felt like this after my yr 10 mocks and got a 9 so I thought it was fine.
Then I went online and saw ppl talking and realised that I had forgot to mention smt on the 6 marker and messed up on a calculation question. This is excluding anything else I could have gotten wrong.
So now I feel so horrible. I want to become a doctor and take bio a level too so it just feels 10x worse especially cause bio was the subject I thought I would have done well in. I’ve literally lost all hope for a 9 and feel like there’s no point in me revising now cause it just won’t pay off.