Anesthesia is very, very safe and it is extremely rare to wake during anesthesia and be paralyzed. Like super-rare. If you are very nervous, ask to speak to your anesthesiologist beforehand & talk it through.
Please read up on it and educate yourself:
https://www.mayoclinic.org/tests-procedures/anesthesia/about/pac-20384568
and here:
https://www.americanboardcosmeticsurgery.org/what-is-it-really-like-to-undergo-general-anesthesia#:~:text=Overall%2C%20general%20anesthesia%20is%20very,a%20fatal%20complication%20from%20anesthesia%20.
"Overall, general anesthesia is very safe, and most patients undergo anesthesia with no serious issues. Here are a few things to keep in mind: Even including patients who had emergency surgeries, poor health, or were older, there is a very small chance—just 0.01 – 0.016%—of a fatal complication from anesthesia."