preparing for Purdue's information technology?

i recently got into purdue main campus. I had applied for civil engineering however I got computer and information tech instead (alternate major). I really want to attend the school but I have not studied or taken IT related subjects since the 9th grade, so I was wondering how can I possibly be able to prepare for my college? So that I do not face any kind of trouble when I get there. Should I read some IT books? If yes, could anybody suggest me any?
As a further note, This is the study plan of Purdue’s IT major:
https://tech.purdue.edu/degrees/computer-and-information-technology/plan-of-study