Scubagirl, welcome!
I'm new too. Just certified yesterday. And I had some of the anxiety you describe. I was sure I was going to panic or be sucked into the abyss. :lol: I don't know how you can be sucked into the abyss in a mere 12 feet of water, but I was really scared.
First, remember is that your air is attached to you. It can't go anywhere. The regulator can go off to the side, but it is simple to retrieve. And if you really can't get to it, you still have your emergency air source.
Second, remember that you can control your fear. Fear is useful because it helps you stay safe. You need to acknowledge it, assess the situation and control it in order for it to work for you. You CAN do this!
Third, remember that your instructor is responsible for your safety. She wants you to know how to be safe. Also she wants your repeat business.
Finally, remember that you need to communicate any difficulties, whether physical or emotional, with your dive instructor and buddy. This helps them to know what to work on and how to best help you.
If I can do it, anyone who is willing to be serious and try can do it too.
Please keep us posted on your progress!
-Olivia
Squeaky-clean just-certified