prioritise AS level physics or year 12 mocks?

i have 2 months until i take AS level physics paper 1 and two and a half months until i start my year 12 mocks. i wanna do good on both as my year 12 mocks will be my predicted but i also do not wanna waste my parents £150 for letting me take AS level physics. i don't think im gna do well. (also my parents havent payed, and i've been consistently getting high C's and low B's in my tests at school, so is it worth doing it in the first place for £150? pls let me know)
in general i just dont know what to prioritise more

So why r. U talking an AS exams if that is not your ucas predicted grade . Schools r different my schools used the official data for my official AS exams for ucas predicted grade but I don’t see why u r taking it.

because ive put a lot of work into physics this year and i want something out of it

i have 2 months until i take AS level physics paper 1 and two and a half months until i start my year 12 mocks. i wanna do good on both as my year 12 mocks will be my predicted but i also do not wanna waste my parents £150 for letting me take AS level physics. i don't think im gna do well. (also my parents havent payed, and i've been consistently getting high C's and low B's in my tests at school, so is it worth doing it in the first place for £150? pls let me know)
in general i just dont know what to prioritise more

I honestly think you should prioritise AS level physics exam because those are counted towards the final grade that univeristies wil look at while mocks are just for teachers. It depends on the school but usally my mocks were about one month before the A/AS level exams so I basically studied for 3 months for AS level exams. however, if this is not the case you should definitely foucs on the AS level exam. Teachers can also make predicted grade based on the AS level exams

Do you take the official AS exams in your school and r they your ucas predicted grade? If ur based in England it dosnt count only in wales.