Do NOT let these boards freak you out. A lot of people (including me, sometimes) come here when they need to blow off some steam.
Just read through them so you can get an idea of what kind of experiences people are having.
Almost everyone has concerns about the pressure and the workload. As far as the work goes, nothing is insanely difficult. I firmly believe that most people in the world could make it through law school if they had more than three years in which to do it; the most intense thing is learning how to manage your time. Obviously, other people's opinions might differ, but that's mine.
By the way, if you have any questions or anything and don't want to post them publicly, send me a PM and I'll help you out any way I can.