You can be a great audiologist and be shy. Trust me, most do not start out with good counseling/interaction abilities, but the more you do it, the better you get at it.
Some people are just people people and will flourish quickly, for others it takes work.
You don't even really have to be an outgoing person to be a great audiologist. I'm extremely shy and introverted and I have no problems interacting with patients. It's very different when you are the one in the driver's seat.
Comfort with the patient interactions will come, and even after several years you will still get uncomfortable with certain patients. I had one today!