There are many books that will give you advice about how to succeed in law school. You may find some more useful than others based on your personality and learning style.
Law 101: What Law School's Really Like by 
Navigating the First Year of Law School by 
Strategies & Tactics for the First Year Law Student
Finding Your Voice in Law School
Getting to Maybe by 
Acing Your First Year of Law School
Open Book by 
