A few months ago my twin sister moved out into a flat with a few friends of hers. At the time I was ok with it - although we were close and i'd miss her, I thought it'd be pretty much the same and we'd still be meeting up for shopping trips, girly chats etc. We're both 18 and its natural to move on with our lives. She didnt get on that well with our stepdad so everyone thought she'd be happier, including her. But its all changed so much.
At the weekend she came to stay back at home for my cousin's wedding. It was a good night, but in the early hours of the morning everyone got woken up by my mum and my sister having a huge argument downstairs. It all died down after a while so I just stayed in bed coz I didnt want to intefere and didnt think it was that serous. The next morning it all came out that my mum had walked in on her smoking heroin outside on the porch when she obviously thought everyone was asleep. My mum said she looked really ill and was shaking and only went to see if she was ok. The whole of our family were shocked - my sister was never like that. I still feel sick to my stomach as I never thought she'd even think of taking drugs - especially something like heroin.
She broke down and confessed that shes been taking it for months and shes actually addicted to it. My mum is really upset but shes booking her in for some help and drug counselling this week. I know it sounds selfish, but I feel more awful than anyone. I'm so close to her and I always have been so I cant understand why she didnt confide in me if she needed help. Today I went to talk to her but she just snapped at me and she was never like that before either. I dont know what to do, i feel lost. I cant believe this has happened. I feel like I've lost my sister and now I dont want to go to uni as I feel depressed and awful. I really dont know what to do.