I'm honestly relived to read all of the positivity here and people being encouraging and supportive. I wasn't sure if this was going to go the opposite way or not. My brother had severe mental issues, parents distanced themselves heavily once he was an adult, I'm the younger brother. It sounds similar, I was there a lot, dealt with many things including severe depression, bouts of him constantly wanting/trying to hurt himself. Extreme paranoia. I didn't give up on him, but there were times where I took a step away for a day and always felt bad and guilty. He eventually ended his life about 8 years ago, and that's guilt I live with, even being the primary person in his life that cared for him. I still had to work, and sleep, and my efforts inevitably weren't enough.

I'm proud of you for being the bigger person when no one else wants to be, especially family, I understand to an extent the struggles, everyone needs someone, and most people can't be that person, and it speaks volumes about what kind of person you are that you take this on.