Hey folks, I was staff here over a decade ago while healing from my relationship with my dBPD mother. This place was very helpful as a young adult learning to set boundaries for the first time.
I am back because my youngest brother is 23 and undiagnosed but has all the signs.
After years of severe depression, substance use disorder, stealing, rehab, suicide threats, a psych stay and a TRO, he is currently homeless. I am heartbroken and at a loss.
He has refused therapy, DBT, online CBT, any ownership or accountability or healing. He tried a little after rehab but quickly regressed.
He is deeply sensitive, has few friends because he is miserable to be around, and screams at family and friends and curses us out when angry.
He went to acting school - something our family supported him in start to finish with encouragement, attending his shows, flowers, money, intros to people in the industry or jobs. Yet he lives in a fantasy where he hopes to not audition and simply be "discovered" or get an apartment for free. When angry, he says we never supported his acting and that's why he isn't currently working.
As his big sister, I invite him to join me on drives, shopping, trips, watching a movie, basketball, etc. but he declines and hides in his room scrolling, or joins and then storms off slamming doors to express his pain. He then complains to our siblings that we exclude him.
During his recent psych stay he cursed me out again, told me to leave him alone. He now complains to the one brother he talks to that we have abandoned him.
Our mother was terribly abusive and neglectful, and I raised him from a baby to age 11 when I left for college. He both loves and resents this history with me, which I get. He often seeks validation, empathy, advice, and then resents these even when given in gentleness and as sought.
Last I heard from him was end of December when he cursed me out, and said things to try to hurt me. I told him I would not have a conversation if he continued to speak to me that way. He called the next day from the psych ward asking for help making a housing plan but blamed me for his mental state and made a suicidal threat, to which I told him I loved him but he needs to talk to the psychiatric help if he is dealing with that. He has not contacted me since.
I felt terrible not visiting him for 14 days in the psych hold, and I am devastated that even with years of support he is now homeless. But just like I have not given him money since I learned of his addictions and stealing, I can't fix this for him or force him to be accountable. He has to want it.
I am trying to wait for him to reach out and apologize now. Am I doing the right thing? When is the right time to reach back out?
All this to say, I have worked on my tools: boundaries, mindfulness, empathy, wise mind, DEARMAN, radical acceptance, and yet 14 years of therapy later I still get blindspots when it comes to my family dynamics.

I want to be a good sister to him, and be caring while not enabling. I fear I have probably enabled his behavior in ways I am still blind to and need to find that right balance. Thanks for listening.