Somehow I've never run across this essay before, written by Professor Timothy Burke at Swarthmore College.
However, yes to all of it. If you're thinking about going to graduate school, you should know that it's not just "more college." It's not just an innocent opportunity for you to continue your undergraduate education. There is a culture that is hard to describe to people who haven't experienced it. But this essay does a better job than most things I've seen at describing (1) why graduate school isn't for everyone and (2) how hard it will be to leave if you decide to.
Thanks, Professor Burke.