Welcome MadMdmMimi: I'm sorry about the situation with your sister. It sounds like a very unpleasant living situation. Is there any chance that you can move out and get your own place?
Everything I say is wrong and I honestly have gotten to the point that being around her for long periods of time (hard when we live together) makes me suicidal.
I'm so sorry you are having a hard time. Are you getting any therapy for yourself? It can help to have a professional person to talk to and help guide you through some changes to better deal with your situation.
Don't hesitate to reach out for help if you ever feel suicidal (or in any way close to it). It can be helpful to reach out to someone by phone. The links below can help with suicide prevention.
SUICIDE PREVENTION HOTLINE:The website below has a phone number to call for a local suicide hotline and has information to support suicide survivors and family members.
www.suicidepreverntionlifeline.org/#SUICIDE AND CRISIS SUPPORT https://bpdfamily.com/pdfs/safety_first.pdfTEXT CRISIS LINEwww.crisistextline.org/how-it-works/PANIC LIST FOR DISTRESS TOLERANCE www.dbtselfhelp.com/html/panic_list.html2017 can be a better year for you. I'm glad you reached out here for some support. Hopefully that is the first step in your walk to make thing better for both you and your nephew. There is some helpful information to the right of this post. It can be a good place to start to improve your situation.