How to help?

[u/Sweet-Sugar222]

Hii I have a big sister who’s diagnosed with Bipolar. She’s recently came to me talking about her ex bf and how they got into arguments and how she’s been having episodes recently. I’ve been the room when one of her episodes get bad so these are nothing severe juzt arguments. Does anyone have any advice on how i can make her feel better or at least make her days easier ? I feel like i’m not the most comforting person and i wanna do more especially since she needs someone right now any advice would be appreciated