Every senior hears some version of the same warning going into their last year: it goes by fast. Most people nod along and don’t really believe it until they’re standing at graduation wondering where it went. The weird thing about senior year isn’t that it’s short. It’s that it’s short and unusually full at the same time, which is exactly why it’s so easy to spend the whole thing managing logistics instead of actually living in it. So here’s the more useful version of that warning: not “it goes fast,” but what to actually do about...