Work your *** off. Be prepared to do nothing else for one year of your life. Everything after first year doesn't matter, but your first year grades can make or break you. If you excel in this one year of your life, doors will open for you automatically.
I'd suggest the book "Getting to Maybe". It does a good job of showing how the law is a weird combination of a binary, logical, rote system and a fuzzy, subjective system. Once you figure out what I mean by that, you'll ace through school.
Take a look at some old outlines, see what they look like. Then create your own. Read the material before class sufficiently so that you understand what the professor is saying before he says it. Create your outlines while you're reading the material. Then use the lecture time to refine your outline and expand your understanding of what the professor thinks the law is.
There are two keys to law school: (1) understanding what game is being played, and (2) working your *** off to play the game better than everyone else. If you don't get (1), then (2) is useless. And if you don't do (2), then (1) is useless.
Your first year is a marathon. You will burn out multiple times. But just keep plugging through it because it eventually ends and you get your life back.