It
will be ok, but I know how fearful you are... but what a great self-care effort you are making!

I'm so proud of you. The T is just as "excited" to meet you the first time too, and wants to be the one who can help you with your needs. I hope this T is the right one for you, and that T puts you at ease and you find everything just nice and easy to talk... and all that stuff you are fearing about.
Put it out of your mind, set an alarm or make a reminder and then... distract yourself.