Lady Gaga took measures to protect her mental health while filming House of Gucci. She says darkness of the character she was playing, would stay with her, even when off set.
She said: “I don't think that any actor should push themselves to that limit. And I ask myself all the time why I do that.”
Towards the end of filming, she had a psychiatric nurse with her and felt that was the safe thing to do for her mental health.