I passed my viva with minor corrections a few weeks ago. It was a very enjoyable experience although very surreal when I was told I had passed.
My examiners and chair were both lovely and I amazed myself by (believe it or not!!) actually being able to answer all of the questions put forward. That was it - the moment imposter syndrome was finally beaten!
I just wanted to say thank you to all in this forum who offered my guidance over the years. It was always good advice given.
I would also like to say for those who are going through the process just now and maybe feeling like an imposter, or isolated, DON'T GIVE UP. You are not alone. Have a read through some of my previous posts. I had several woes and low moments throughout my journey but i persevered and succeeded.
If you are feel low, drop me a pm, i'd be happy to talk or even just listen.
During these moments I found a gratitude diary to be extremely useful. There is one called the 6 minute diary (it has a whole section at the start on peer reviewed research that evidences the use of gratitude as a tool for taking care of yourself. I feel this one is pitched well at PhD students as it provides evidence, as takes very little time to complete each day.
I'm going to check in every now and again to hopefully support others in the way that I was supported.
Good Luck!