How to clear absorbed energy from someone else’s negative situation?

I’m currently with my sister who is going through a messy divorce with her 1 year old child. I’ve travelled from interstate to help her. She’s in pieces and barely hanging on by a thread. Her ex husband is a cheater and general ass. She has NO support except me, and baby daddy’s parents who take baby for 4 hours a week.

My family is very broken in general and my sister is exhausted. Since being here, I feel myself wearing down and struggling too. I feel like my body is absorbing the negative energy of the situation, the place, the people, the environment. My sister whinges a LOT at the baby and about the baby because she’s absolutely drained and at capacity. I don’t blame her, but it’s heavy for me.

Can I do some sort of visualisation to refresh and feel more grounds?