Yeh , im in the same position as you in Maths A level exept ive started it a year early in yr 11 , and spreading the course over 3 years. Think its just a matter of trying your best and do extra work on the things you carnt do , theres a book which covers everything and is useful which i will be getting which has the whole of C1 and C2 in think you can get it off amazon or something teacher said. Not sure what its called though il find out if you dont already know