I am a sophomore currently. I am planning to take the test towards the end of my junior year. Probably in April 2018. I took a practice test yesterday and scored 1180. Having a year to prepare, by how much can I increase my score? Is a 1600 possible?
I may also take Biology(E) and English Literature around that time. How do I study for those? What are some good books?
Thank you 
P.S. I would be applying for class of 2023