Single before a surgery..how can i ...

Kinda nervous to ask tgis question, but has anyone had a surgery where they were told its 50/50 ? They want me to understand that the procedure is 2 hrs, and observation is 2 hrs and i must have a driver to take me home. Its a same day surgery.
Risks involved..
Possible stroke or blood clot
Possible infections or non healing wounds
Possible blood leakage or uncontrolled blood loss
Possible loss or partial loss of bowel movements
Possible flatulence or uncontrollably farting
Exstreem gas, burning and pressure up to 3 months after surgery...hsppy new year to me right?