Hey Smiley2000,
Congratulations!!!
This is wonderful news! I'm happy for you.
I would suggest you try using some coping techniques. When you feel anxious or nervous, remember to breath. Take a few deep breaths. Deep breathing can help calm things down an eventually your heart will slow as well.
Mindful is also very helpful. See link for site on information on it:
www.mindful.org/Remember that you were able to get through the test and interview. You can do this!
Let us know how your first day goes.
UA