I'm a Bit Nervous

Tomorrow, Don goes to have his Hickman Cath inserted in his chest for the clinical research trial for ALS that we've decided to be a part of. He doesn't seem very concerned at all. I have taken training in administering the twice daily medication. After they insert the cath tomorrow, I will be injecting him with his first round of medication. I'm nervous as a long-tailed cat in a room full of rocking chairs! I'm assuming the doctor, assistants, etc. will still be in there watching me as I do it. What if I make a mistake - a STUPID mistake. I'm certain they would call it to my attention. I just hope they do it in a kind and understanding manner. I think, once I've done the procedure by myself a couple times, I'll be much more comfortable with the whole idea. Until then, I'll sure be glad when tomorrow is over and I have one session under my belt.