Didn't even know you could do further maths withoIt maths? That's silly I'd change to maths if I were you! It depends on what you enjoy, there's loads of biology related degrees but I only know that because I have researched them as that's what I like. Don't stress, I didn't know what I wanted to do when I had just started AS levels. Once you've got going properly decide what A Level is your favourite and research related degrees and careers. You'll get there!