Just because somebody is better at sciences and maths doesn't mean anything. I was always far better at sciences and maths, but at school I had top marks across the board in every subject. Choosing to do law was an extremely difficult decision which I'm glad I made, because I could have chosen to do anything. I wouldn't recommend taking 5 AS levels, if you got rid of eng lang and law and exchanged them as someone else suggested it would be better to just have 4. As for that pure maths, ur psychopathic! Taking M1 and S1 rather than the FP would be far easier.
David17 I actually agree with on his final point. Although the history in itself was not harder, you definitely need to pick your essay style up a grade. But, this doesn't make it "harder": you are a year older, more experienced, and for the stage of life you are at it should have the same level of difficulty.