I’ve been under anesthesia about 25 times in my life...and I’m still sharp. You will be fine. You have brain cells to spare, clever girl. And your adventurous spirit and sense of humor will carry you through with style.
Sending prayers that all goes perfectly on Friday.
There’s always just getting it done with a local too. Go oldschool! (A buddy did it after having about a 70 cal diameter air gun regulator blown nearly all the way through his thigh.)