My experience was a long time ago. The staff was kind but they have a routine. If you do your best not to interfere with them and don't give them a hard time, it will be easier.
They are doing what they are ordered to do. If there's a rule about smoking or going outside or whatever, it's not their rule and it's pointless to argue with them.
Try to be open and honest with the staff. Share all the knowledge you have about your illness. That will help them help you.
Don't be afraid. It's nobody's idea of a fun party, but if you work with the staff, the rest of your life might just be starting.
Good luck, honey.