It's good that you know what grades you want to aim for and if you revise well for the exams and do the coursework to a high standard, you'll do well.
I recommend you plan your coursework and try to get it finished quickly because then your teacher can give you improvements for your next draft. Also, it's good to get the coursework out of the way to give you plenty of time to revise.
I think you should try to get as high as possible in the coursework, A or preferably A*, as this will take off some pressure in the exams.
Good luck