For me it was surreal and then I was grateful. What I had been doing up to that point was clearly not working.
It may seem uphill from here, but I suspect that you will have a gameplan and in that regard life will be a bit easier. The relief will be knowing what you are up against. The hard part for me has been friends and family not being supportive and questioning the diagnosis, hence why I am on the Internet talking with complete strangers.
The most frustrating thing that my psych said to me and my ex sitting in that room was that it could take up to a year to stabilize. I found this to be true for me.
We are here for you. Super big hugs coming your way. You are in good company here.