Of course, you are nervous about residential treatment. I think everybody is if it's ther'ye first time. They will keep you busy with statagies for getting well. You will meet others with the same problem. You won't feel so alone. Mainly, use any techniques you have to reduce your anxiety. Listen to music, meditate, excersize, etc. If you haven't tried any of these, start, they really help. You will feel much more at ease once you are there and start to make friends there that have the same goal as you. Good luck to you. I know it won't be easy, but we will support you here.