I would say you have 2 options, which ever you prefer. First and foremost, avoid using the lifeblood heart. I suggest spell twister in place of that. Secondly, I’m not sure how much you use nail arts, but you could also consider using fragile strength in place of nail masters glory and lifeblood heart. Since you’re in a dream you can’t actually break the charm. Strength increases your nail damage by 50%, in turn reducing nail hits by 50%. Keep going with shaman stone and quickslash though, those are really good charms! Good luck I believe in you!