how do you get 19 in ch 1 and 36 in ch 2?
Ch1 #19: Dame Athanasia's mansion; don't subdue the guard, and don't look in the bedroom keyhole. Just find the key and go for the loot.
Ch2 #36: When entering the Temple District for the first time, you'll talk with the Grandmaster. Choose the "We're good friends" dialogue option when he asks about the Darkness, then apologize with the next dialogue.