What do you think about my A-levels im going to take?

Looking at that u should be fine, Maths is the major one you want to be good at if you want a job in eng/phys as there is a crap ton of maths involved, and it can get pretty complicated, i personally took phys/math/chem at a-level and got a job in engineering. its not easy but stick at if its what u want :)