We have to choose subjects for year 11 in a couple of days and if we want to do an advanced class even sooner. I'm having trouble choosing which subjects because I've got too many. So far I want to do methods and english. I'm interested in; Japanese, Further 3/4, Biology, Chemistry, Literature, Psychology, History.

I did general maths this year and we are supposed to do further next year and I really want to advance in Biology but I havn't done units 1/2. I would rather do chemistry because I find it easier but I think I'll miss out on a lot by skipping 1/2 of chem. And we can drop English and do literature instead but I'm not sure.
After school I'm thinking of either becoming an author or a medical career in a hospital. I am so confused.
Anyone have any idea which subjects would be most useful or aren't worth doing? Thank you so much.