Hi Euterpe,
A big Aussie welcome to Susan's family. It's good of you to drop in and say "Hi". Hope you like it here, and you stay for a while.
There is a mountain of information, resources and friendship waiting for you here, you just need to jump in start talking and ask any question you like. You're quite safe here and we are very accepting.
In answer to your question, "does everyone here refer to themselves as Susan's," well no. I'm Catherine the maaaaaad one.

. But some of use refer to this place as family. A chosen family. Hope you enjoy being a part of it.
Looking forward to hearing more of your story in time to come, but in the meantime, be safe, well and happy.
Lotsa huggs
Catherine