Do it looking in the mirror with your weight on the other leg. I never put the needle in like a dart, admittedly, but it was fine. One thing that might help this first time is to go get some Vagisil - it's like 20% benzocaine - and your skin will be NUMB. Also when you finish, rub rub rub.
I do understand E&H's point - it certainly is not compulsory everywhere - but do you have an alternative for tonight to keep your cycle on track? (Keep in mind I really am the biggest weenie. My hands were shaking for my first shot and I was terrified. I am scared to death of snakes and spiders. Thunder and lightning too. And busy highways and ohmysweetlord high overpasses. I fight fear and fear sometimes returns to me but I keep on fighting it. And it feels good to conquer it).