I completely understand how you feel
. I get so scared and anxious whenever mine have had to go under...bc there is always a risk, no matter what. But, all 3 of mine have always done so well - and the major, major, major (!) majority also do so well. So, I bet Abby will do great.
Hang in there, and feel free to vent on Monday if you need to -- we all understand what you're going thru.