Do you have someone who could do it for you a handful of times?
I am also VERY needle shy. It scared me too. I have needle issues that I think relate to diagnosis. I think I have sorta unconscious memories of being really sick as a kid and I panic around IV’s. The more you are exposed to something, the better it will get, most of the time. I did a bunch of paramedic training and that helped to some degree. I am capable of giving an IV sometimes. Sometimes I can get an IV without panicking. Sometimes I dont have any difficulty. But, sometimes I do.
If you can’t do it, then have someone else do it for you upfront. You will get more used to it if you do it in a calm setting with someone you trust (who can keep calm and not get impatient). Do it fast - dont allow yourself to build up a bunch of stress and adrenaline during the experience. If you start to panic, then dont move forward. Wait until your distracted by something else and you can do it without overreacting.