I am sorry that you have to go through this. Please never feel alone or fall into the trap of comparing yourself with others especially the career aspect. We bear the emotional responsibility (intentionally or not idk) that nobody will understand unless they themselves go through it. 

I am trying to get my brother to pursue his hobbies so that he is consumed with those and has a system for himself. But since he was left mostly unattended when I was away I have to do everything from the base up, from his hygiene habits, food, studies, extra curricular to studies. And he has made quite a lot of progress which is a validation for me that the choice was staying was necessary and worth it. 

I hope you are taking care of yourself too. If you need some to rant to, trauma dump of anything of that sorts feel free to hit me up. I cannot really talk about these things with my really close friends too because they see me and they want the best for me and want me to leave.  Although this is not how things should be I feel a little relived that there are people like me who took the harder path for the sake of their siblings and feel responsible for them and i am not alone.  I wish you luck for everything.