I'm not the only imposter syndrome poster child, haha
I still get that imposter feeling from time to time and I've been qualified 5 years. So does one of my nurse friends. We are waiting to be found out by our superiors that we don't know what we are doing. We do really know what we are doing but I think it's perfectly natural to doubt every now and then. It just means that you're developing and questioning how you do things.
Good luck with your new life in Warm Springs as an OT. I'm enjoying hearing all about it.
Jo (Community mental health OT, Northumberland, UK)