<human>: Can you give me the gist of the text in a nutshell?

I am the youngest.

I hate what my sister has become and I hate what my brother is becoming.

 My sister has had a painkiller problem for about 6 years and I barely talk to her. When I do, I make simple comments and I am just too annoyed at what she is now to talk to her. She is in and out of relationships with guys who treat her like shit and I am disgusted of her. I used to feel bad for her but I no longer do. I blame everything on her, but I know that's not right. She has been in and out of rehab, she has stolen from our family for drugs, and she never answers my texts when I'm at school (in a different city). The only time she calls me is when she's fucked up at 3 in the morning. And I never answer that.

My brother has started having drinking problems. He is married and he and his wife have been in arguments for it. She even moved out for awhile because of it. I am very close to my brother, but we still never talk about it.. Only once. I am the youngest but I see them both as fucking babies right now. My mom just went over to my brother's house to help sort shit out because apparently he's drunk. 

But despite all of my hatred of where they are going, I can't reach out to them. Although I am the youngest, I am the most social and understanding one in the family. I see myself as the baby of the family who could fix everything by reaching out and actually helping, but I can't make myself do it. I am too disgusted with them. And I beat myself up over it. I have become distant from my family because of all of this shit. I am sick of having such a fucked up family. 

I just need some advice. I want to help, but at the same time I don't want to have anything to do with them. I beat myself up over it while simultaneously hating them for what they are doing to themselves. They have the best fucking parents someone could ask for, but they are fucking everything up.
<bot>: My brother and sister have addictions that drive me crazy and I am stuck between loving and hating them. I don't know how to reach out or if I even want to. I need advice.