How to comfort someone who failed the bar?

My girlfriend failed her first try at the bar exams, it is her first major failure academically and it has left her devastated. I tried being supportive and encouraging, I still am. Pero its like she has lost confidence in herself, she's scared to go outside or interact with people, although she pushes through with a facade that she's ok kasi we're adults and life goes on. Pero it pains me when she has anxiety attacks or when she tells me na parang feeling niya siya ang pinakabobong tao sa mundo. I always tell her na hindi yun totoo at she is one of the smartest people I know, because she really is naman. I feel so powerless and useless kasi parang walang amount ng encouragement at comfort yung makapagalis ng nararamdaman niya and I am worried that it will affect her preparation for this year's bar.

Any advice? Please. 🥺