Schedule at least one hour for lunch, and try to always have lunch with classmates. Decide early on who the people are in your class that you really like and want to spend time with. As for the rest, even the ones that you sort of like, don't commit any time to them. If you are already at a function you budgeted time for, such as a class party, by all means be gregarious. But don't schedule your leisure time activities with people you don't really want to be with.
Time is too short in law school.
Have a fund of several thousand dollars to see you through the first few months of school. Often times, financial aid disbursements are slow in coming. If you do not have cash, try to arrange something with relatives, or apply for credit cards or a line of credit with a bank. Try not to fall in love while you are in law school. If you do you can kiss your schedule and orderly life goodbye.