HI @Felicity73 and welcome, i'm pretty new here myself.
I'd suggest making a list of the key points you want to discuss or try to get across. That way if you get a bit lost when talking you have something to get you back on track. I'd also try and focus on breathing nice and deep if you start to feel a bit anxious. Try and stay calm and remember that they are there to help you, not to make things diffucult. At least that should be the intent.
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