The anxiety has begun....

Tomorrow afternoon I go to the ENT to start allergy shots and my anxiety level is about to hit the roof. I have a great dislike for needles and now I will have to give myself shots 3 times a week for at least 6 months. Add to that, the vial of shot liquid is $180 and I have no idea how much my portion of the office visit will be, let alone how many of the visits I have to have before they let me just do the shots by myself. I don't know what to do anymore...