Cheers for that. Wish I'd known about it earlier, as I made the change but actually found it a bit weird having dash, roll and jump all on the circle button, so went back to the default. Having already played for 10+ hours with those jump controls, I just got used to it.
Anyway, I managed to defeat the first Boss last night (assuming it was the first boss, every bloody enemy in this game feels like a boss ).
After trying and failing about 20 times as a hollow, I decided to make use of my first Human Effigy and return to human form, which did the trick.
There's a limited amount of Human Effigy items, right?
I haven't really been using any items so far, as I'm not aware of which stuff is replaceable and what's limited/rare.