My favourite field of science is Astrophysics. I am also a fan of most dynamics.
I am seeing Vaporeon doubles.
Back when we got a sampling of biology, chemistry, and physics in high school, I really, really liked chemistry, but I needed physics for university and couldn't fit chem in my schedule so I never went anywhere with it. ;_; Apparently it gets really hard, too, so I'm too scared to check back into it.
I do rather enjoy physics, though. But that's probably just because it's applied math. :/ I'd take an actual math course over it any day. edit: People are going more in-depth so I'll mention that the study of dynamics was my favourite part of any physics courses I took. :P
Similar but different. While Physics is Mathematics applied, I do like learning about how the applications of Mathematics, affects our world. Attaining a fundamental understanding of why things behave the way they do and so on. If my A-Level physics grade was higher, I would have probably done a physics degree over a maths one.
While my achievement and interest lacks both in Physics and Chemistry, I seem to excel in Biology - half owing to my curiosity and half to my teacher who encourages this curiosity. When I've finished my work, he doesn't mind if I ask questions not relating to the subject the class is studying, but something else that I want to know about.
More specifically, I'm taken with neurology and the brain as the centre of the nervous system. However, due to the fact that I'm still just taking general Biology as a mandatory subject and I'm not yet able take a course on a more precise area of Biology, it is not often that we come across the areas that I'm more interested in.
If I could somehow improve in Chemistry, I could take both at A Level and further my interest in Biology and maybe make some sort of career out of it, but since I have extreme problems with Chemistry already, I don't think I'd be able to understand it at a higher level. If you want to go anywhere with Biology, you really need to take Chemistry with it.
(.. I'll just end up writing much more than everyone else then.)
It does help taking Biology and Chemistry together. I'll tell you a bit about myself as a means of potential guidance for your future. First, view some of my GCSE results.
A - Double Award Science
B - Mathematics
B - English Language
C - English Literature
I ended up taking Maths as well as Biology, Physics and Chemistry at AS level. I was alright at the sciences and decent at maths, and economics and business studies didn't really appeal to me. I'm hopeless at languages so that's a no go too. My handwriting is terrible and I hate writing essays, so English was out of the question. Anyway, these were my AS level results.
B - Maths
C - Biology
D - Chemistry
D - Physics
I ended up dropping Biology for my A-levels, going against the advice of the vice chancellor or someone like that. It's because out of the three sciences, I disliked biology the most. I like physics and I found some aspects of chemistry enjoyable and others were OK and some parts were lame. But all in all, chemistry was decent. I disliked most of biology though so I dropped it, despite getting a higher grade. Fast forward and these were my A-level results.
A - 81% - Maths
C - 68% - Chemistry
C - 68% - Physics
I wanted to do physics at university but as mentioned earlier, because my maths grade was so much stronger than physics, I opted to take a maths degree instead. I could have easily done a physics degree with a C, especially with an A in maths but I figured, I'd get a maths degree and then jump back onto the physics bandwagon later. That time has come. I'll get my degree results within the week and I'm already in the process of applying to universities to do a Masters in Astrophysics.
Anyway, let's get to the crux of the discussion here. I don't know how bad your ability at Chemistry is, but if I were you, I would take both Biology and Chemistry together. If you can get at least a B in Biology and at least a C in Chemistry, you'll be able to get into a decent university to further your studies, assuming that is your desire of course.
It will be tough though. A-level is the toughest education you'll go through. It's even harder than university, believe it or not. The gap from GCSE to A-level is phenomenal and it will probably take you some time to adjust. While the same can be said for A-level to university, you've at least experienced the jump previously, and you'll be able to get your bearings quicker.
Stay strong and push forward with unwavering resolve and I'm certain you'll pull through alright. Most of my knowledge of chemistry is gone but if you ever have a question or anything, you can ask me and I'll see what I can do. Especially if it involves maths ¬______¬