Clarity, that is a brave move. You can do this. See if you can call around and find a support person. Years ago we did the same thing. After a week we were terrified and confused and called around some places to find a support person. We had lots of walls - they couldn't take on new clients for months, outright nos, stuff like that. Then we called a community center and spoke to someone who calmed us down right away. She made an appointment to see us the next afternoon. She is now our ex T, much loved, much missed, but we still keep in touch with her.
You can do this. Find that person for you. They will help you through the hardest bits. While you are looking you can get support from here.