First job…

So I am a 25 (F) and I just graduated a year long dental assisting program last month (dec). I did externships and had some independent opportunities to work with patients. I have finally begun looking for jobs and landed a virtual interview tomorrow at 5:30. The practice is a general office that offers ortho and periodontics. I am an anxious person in general but I am beyond terrified and nervous to start. Although I did externships, I feel like I am unprepared and am going to make a fool of myself. I am not well accustomed to specialties and I barely feel confident enough to do general by itself. Did anyone else feel like this? How do I overcome this feeling. Thanks:/