Depressed gal, I was also very fearful of injecting myself. But don't worry, you'll get a hang of it yourself after a while. For my case, I started stimulation yesterday. When the nurse gives me the gonal f jabs, it really hurts! To overcome the pain, I used ice pad as suggested by miracle, to numb my tummy for a while, then pinch the fats on my tummy before the injection. It really helps to ease the pain.
Personally I also like to do the jab myself as I can have full control. You will be ok! Jiayou!