If my normal mood was Boston proper and mundane frustration was Cambridge, I would be well past Wisconsin by this point, and perhaps into Montana. Maybe Seattle. Maybe Mars.
EndNote is great in the abstract. I have neither the time nor patience for the abstract right now. As some friendly practical warnings to fellow EndNote users, you should (a) keep all your references in one library, (b) not collaborate with other people, (c) not attempt to write complicated documents, and (d) not do any work that involves deadlines. Consider (e) fleeing academia and (f) finding peaceful work in a bookstore or as a barista.