Jessica, it’s so relieving to hear that the case is going well for both of you so far.
Regarding protection, you may want to pour some salt around your home 
or place protective crystals in different parts of the house.
You could say a prayer to protect and heal, or try some of these anti-anxiety spells.
You mentioned that the jar didn’t work. Have you tried giving him tea? You can bless the drink e.g. a tea blessing such as this one or this one. Here’s useful a list with 25 types of tea to relieve anxiety. 
All the best! 