Terrified but hopeful for rehab

My husband hit rock bottom. My amazing, successful, "high functioning" husband lost his career due to alcohol. He has am admission date for a 28 day rehab next week. This is all happening so fast and I'm so overwhelmed. Unfortunately, I enabled him and hid his secret for far too long.

I'm so proud of him but at the same time, I am beyond angry and disappointed. Any tips on how to be a good wife and support his rehab journey while I am also struggling?