Do you know what classes you are going to be taking? If so, fnd the syllabus and take note of the topics and the text, if one is mentioned. See if you can find any mention of material your school may have used previously and get yourself a copy. Find the topics in the book and work through the exercises as you please.
Just a reminder that the point of researching the validity of things we intuitively know to be true is to provide the empirical data and expert analysis that can be used in, say, legal decisions or legislative processes.
"Nuh-uh. Nuh-uh."