I can't find the words of park and x... My brain hurst! :-P
Got everything but 3 and 6, wrestled with them for a while, before giving up and looking for help in the comments.
One at a time, my reaction to both of those hints was "but I'm already trying to do that!", for about half a second each, before I suddenly knew the exact thing I was doing wrong. I don't know if that means your hints were too good or exactly perfect, lol.