I'm living with my 2 sisters. Sister 1 is significantly older than myself and sister 2.

Sister 1: tends to be grumpy and aggressive about everything from work to traffic. She has to be right about everything and she feels entitled to provide her unfiltered opinion on anything. Nothing is ever her fault and she's quick to refer to others in derogatory terms. Her appearance is even tense and I'm not the only person who thinks this. When me or sister 2 mention our problems or emotions sister 1 considers it weakness. As long as you lashing out at others you can complain all you want in her eyes.

Even when I was a small child I would be her sounding board for issues and I just agreed. I thought that negativity was normal. Now its just stressful but I always let her talk because I don't want her to be upset.

Sister 2: is very withdrawn socially and has anxiety issues. She can handle pressure and me or another family member usually has to step in and soothe her or handle things for her. Im finding it really hard to deal with my anxiety and hers too. She's always been like this to some degree but her emotional outbursts are getting to me. I know that this sounds selfish but why can't she just get over things?! I feel like I have to take care of her and myself and its not doing either of us any favors.

Sister 1 goes to work and sister 2 is okay when she's cool but otherwise my only out is going out with my boyfriend and that feels wrong and unfair to him somehow. Are there better ways to respond and cope with my sisters being stressed? Moving isn't an option.