I am also a 2nd semester 1L. However, I do not study to the extent that the previous poster seems to... I am in the top 10% of my class, so it is not that I don't work hard-- i usually do hw 2-3 hours a day m-f and about 4-5 hours on sunday (if i feel motivated, so about 2 sundays a month). You have to do what works FOR YOU. I have found, not only with myself, but my friends as well, that how much time you spend on hw and the method of how you study doesn't need to change much from college. i still study the same way, the only difference is an increase in hours of work per week that i do. it is completely dependent upon the individual, so asking someone how they study and how much, doesn't mean that is what you should do.
As for starting in the fall, i also read all those guides, bought a few supplements before school, and read the
PR board and Sua Sponte religiously. Though i can't say it was a waste of time, i can say that it didn't really matter. I also had no idea about books, orientation expectations, etc. Don't worry, everyone is in the same boat... you will get it all in order AFTER or during orientation. Just make sure you are compeltely moved in and settled in your new apartment/house/dorm, that you have the mindset of a 1st grader ("i want to make friends") when you go to orientation, and know thyself--- seriously. the friends part is good just because you might miss class someday and need notes, or you might want to have someone to call if you forgot your syllabus at school, etc.
i know this is repetitive, but don't freak out, it is not bad. if you are sure you want to go to law school (or at least mostly

sure) then you will be fine. i love law school, which might be odd.... i think most people do, they just don't want to admit it (or they shouldn't be there anyway).
good luck