Today is the third day I need to pin. So far I hit delt and glute.

I just tried to do a second delt shot (this time on the other arm) and I couldn't do it. The needled felt like it wasn't going in. I pulled out and decided to switch in a new one. Tried a little to the side, still wouldn't go in so I checked the position and tried again. It started going in, but was feeling odd and really slow, different from when I did the first time. So I pulled it out and along came a stream of blood.

Gave up on the delt, switched needles again and tried what I thought was the ventroglute. Wouldn't go in. Even though all my weight was on the other leg, I felt resistance and felt like I was still tensing that muscle. Pulled out and tried again. Still couldn't do it, probably because I did not feel confident that it was really the ventroglute.

At this point I think I've completely psyched myself out. I'm having a mild anxiety attack and can't even fathom the idea of pinning.

What is wrong with me? Anyone else been through this, if so, how did you get over it and continue?