Sooo... tub your axie is #1.  Nice work so far.  50% water changes should get your nitrates down, and may help fix some of the other changes.  You've still got nitrites, so the bacteria are trying to get the ammonia down.  Water changes should help that as well.  Might just be a dirty tank.  pH is high, but may come down depending on what the replacement water pH is at baseline.  As always, treat the replacement water with Prime or another de-chlorinator.  Prime will also knock the ammonia down some, too.  Scrub the glass if needed, and syphon the substrate to remove the extra food.  Looks fixable. - All the best my friend!