GCSEs are an intermediary point to get you to A levels, so they're not the be all and end all.
Just focus on working hard and attaining the best grades you can, so that at the end of it you know you tried your best.
Hope this helps,
good point, but it has been in the exams themeselves that I have getting really stressed and panicked in both my science exams and now I think that I have made lots of silly mistakes.
please do not make my mistake and start your revision as early as possible!!