So, it's completely understandable how you're feeling right now - but just think how relieved and proud and good you'll feel when you've done it! Yes, you'll have the appointment to be scared of then, but I'm sure you'll feel a weight of your shoulders for having made that first step.
I won't be able to be on DFC much today - busy day - but nonetheless, consider your hand virtually held! (Hugs may be my speciaility, but I do dabble in a bit of hand-holding now and then, on the side! ) And I won't let go until you don't need me any more! I'll pop back on when I can, and I hope to hear it's gone ok for you.