Welcome to the forums.
What a challenging time to be moving & starting a new career! - &going to see your GP, & a new Psychologits, wow!
These are major changes, which all are likely to cause a lot of stress, & heighten anxiety.
I sincerely hope you can work with the Psychologist, so you can begin to work with the thoughts & feeling, & that having some understanding will lead you towards the life you want.
The first time I approached a GP to ask about seeing a Psychiatrist was many years ago, & I still vividly remember how terrified I was. & I have to admit it didn't get much easier in subsequent years when I had to do it all again.
I'm sure you will discover people here are kind, caring & respectful. There is no rush. If you feel comfortable to post, you may, here or elsewhere around the forums.
You'll notice a targeted forum for people with all manner of anxiety, & many threads discussing related topics. You are welcome to look at that.
You'll certainly see me around!😺 I get a lot out of being here.