Preparing for law school:
1. Think of any fun stuff that you like to do and have the financial means to do (trips, sporting events, getting drunk, etc.)
2. Do as much of that stuff as you can afford to do as much as possible
3. Spend as much time as you can with friends and family
4. Maybe thumb through a few books about law school (I like Getting to Maybe, absolutely skip 1L it's not worth it). If you don't it's not a big deal.
5. Show up the first day, resist the urge to freak out like everyone else is doing, and work your butt off for the next year.
People will try to tell you differently, but there are two types of people who do well in law school 1) people who are naturally good at it, they just "get it" 2) people who work their butts off non-stop. Quality of life decisions start in law school. If you're good at law school then you don't have much to worry about. If you're not, then you'll have to decide how much quality of life you're willing to trade in exchange for percentile points in the grade rankings. The good news is that it's still more than possible to graduate in the middle 50% of your class (or below) and still get a job. Just be open to the idea that you may end up enjoying an area of law totally different than what you thought you would when you came to law school.