So, I'm 3 years on T and I still shake every time. What I do is put on music I like, get everything prepped and ready, and when you have you actually put the needle in, close your eyes and focus on your breathing and the music. I find the puncture part to be the worst, once the needle is in, I can open my eyes again and steady myself to push the plunger. Count a couple breaths (i usually do about 10) and quickly pull needle out and bandaid. I don't know how to get rid of the anxiety completely, but I promise it gets easier and more normal. You just have to accommodate the parts that block you the most.