Should I drop physics or further maths (just for consideration)

Mock exams don't really matter in the long run so if you can recognise the issues and address them then there's not necessarily any need to drop anything. Obviously though if you're struggling with the workload otherwise, don't enjoy physics, and know you won't do anything requiring it at degree level, then equally there's no reason not to drop that in principle.

That said, one thing to bear in mind is if you will be taking the full A-level Maths in year 12, dropping a subject now and then only taking 2 A-level exams in year 13, this may be an issue for a small number of universities/courses who expect you to take 3 A-level exams in one sitting.

Thnx, just to clarify i meant the alevel maths paper is for my mocks, i'll still be sitting the real one next year, its just that we covered all of maths in 1 year so we can cover further maths in year 13. I also been told that dropping and doing 3 subjects could seem like i couldnt handle the work load which could be be an issue for unis.