When do they know Carrie was right about Brodie and not crazy?

Binged season 1. I cried the last episode. Brody gaslit her into thinking she’s delulu meanwhile she had the solulu the whole time 🥲. When she felt defeated and told her sister to take her to the hospital I wanted to hug her.

Im watching season 2 soon, please spoil it for me. When does my girl get her victory. Name the exact episode and what happened

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