re: Official Bloodborne Thread (spoilers)

So can someone help me figure out how leveling up works? I have 5 insight, so what does that mean? It won't let me manually upgrade. I go to do it and it tells me no attribute selected. Also, is there a portal near every boss, because there was one not far from the first boss, but I just got to the second boss and almost beat him, but I died and now I have to do all of that shite over again.