I must comment on this topic before every law school applicant/student decides to give up.
As far as happiness goes, LAW SCHOOL IS (generally) COMPLETELY SEPARTE FROM THE LEGAL PROFESSION!!!
Many people think, "Well, I like law school, so I'll like being a lawyer..." From what I've read, many people love law school, but hate practicing law. And vice versa: many people hate law school, but enjoy working in the legal sector.
I'm not sure if I will decide to be an attorney. I am (pretty) sure that I will enjoy law school. For all I know, I may decide to be a political journalist. I don't know how I plan to use my J.D. But that is what internships/clinics/summer jobs are for. I'll deal with my future as it comes. I don't think anything could keep me from attending law school. As a matter of fact, since I am so stubborn, I am actually more determined to attend law school after I hear of someone who couldn't cut it.