Welcome!!
I too was apprehensive at first as is everyone else. The needle is so small, that you will not feel it--I guarantee it :-). But yes, the first time you will probably tremble. And it's all in the mind. And believe me, it will get easier. Good luck!!
I had never injected myself either, I now just did shot#11. It's not that bad but I do still dread it every week. We have a place here called Option Care that will give you the shot, I've heard some people have also had the nurse at the doctor's office give it to them. Good Luck