Hi all, long time reddit lurker but I've never really posted until now, so I hope this is okay. So, I do a lot of masking pretty much 24/7, even around family members who are supposed to be the closest people to you in life according to most people. I feel uncomfortable being a sort of therapist friend for some people, and my sister in particular trusts me a lot to confide in me about a lot of personal stuff which I try my best to be supportive and attentive to, but it's hard when due to trauma and being forced to be an emotional support object for my mother growing up,  I immediately feel resent and frustration at being expected to listen to people's emotional troubles and accommodate to them. Even with the DBT I've had in therapy, I think my brain is just wired to feel this way? It's not that I hate my sister or anyone else in the long run when I have to do these things, but it's easy to have that black and white thinking in the moment, where I curse them in my head and call them weak or a waste of time. I know setting boundaries is the best solution to this but I'm so used to being that calm person who can listen to and care about you to most people that I'm afraid of seeming "selfish" or manipulative by saying it tires me out and I'm not always equipped for it. What exactly should I say? Whenever I have to bring something up I always have to know the words and follow a script so I feel confident in getting my point across, so simple examples of how to go about it would help. Thanks for even reading this ^^;