What to expect in rehab?

I’ve finally made the decision and got the courage to start the admission process for a rehab facility in my city. I don’t have the date yet that I go in, but it’s an all women, live-in 2 month program. I’m absolutely terrified to go, but I know it’s something I need to do.

Does anyone have any advice on what to expect while in treatment, or how to prepare for the adjustment of being somewhere completely unfamiliar? Or just anything on the topic would be helpful, I just can’t even imagine what it’s like. And my anxiety is going crazy thinking about it.

Thank you, I really appreciate it.