My sister is 17. She's been in a major depressive state for a couple of months now, and it's made her prone to have more anxiety/panic attacks, to the point where she sometimes starts shaking and hyperventilating out of nowhere. She's also been experiencing sleep issues, so she's exhausted during the day, and it's especially affecting her at school (which is also the place where she usually has the most attacks). We had to forcibly leave our country around 4 years ago and she doesn't really connect with the people from this country, so she's a loner. Furthermore, she's also expressed that she doesn't know what to do with herself, and I usually wake up to cryptic text messages like "I can't do this anymore" or "I'm sorry", and for someone with past suicide attempts like me, those are no joke.

With no father figure in the picture, I'm the one stepping up for her. I'm always picking her up from school when she doesn't feel good enough to be there, always calling her to check up and let her vent, comforting her whenever she needs it. I don't mind it at all, but I'm also depressed and I don't know how to help her without getting worse myself. I've been medicated in the past but I can't say that it helped, plus I don't know if me being autistic has to do something with my depression being more "silent": I don't cry often and I definitely don't tell people that I'm struggling. 

It feels like I have to drop whatever I'm doing at the moment just to make sure she doesn't harm herself, and it's really affected my college life too. Sometimes I don't even have the mental energy to do what I need to do. Now it's like I wake up everyday waiting for the worst. We can't access healthcare, so she's in a long waitlist to get mental help. There's literally no one I can tell about this, and I really don't know how to tackle the situation. I love her, I do recognize her situation is serious and I promised being there for her unconditionally, but I don't know what to do. I need help.

Thank you for reading and sorry for any broken/nonsensical English.