can't sleep, thinking too many things...I'm scared.

This seems normal! I had only 2 weeks notice so I was completely out of whack those first few days after finding out my surgery date. I was nervous/scared mostly because I usually have a lot of trouble with IVs and such. They did have one false attempt to get me but after that the whole experience was fine. Just be prepared and think.. it will all be over soon! (And then the next journey begins!)