i am just going on to A2 now, got a B is AS, and also do Biology and Geography (have an AS in Eng Lit too) and yes, it is hard, but stick with it. It can be boring but a lot of the stuff in the sylabus i am doing will apply to stuff in flying training. Its hard but with work you can be successful, if you have any questions on the AS, email me.
Ian Bowden