Given it came back quickly means your strain of cancer is tough, also being non
HPV adds to it being harder to cure.
You are so young it is harder to say give it all they can as you have a long life to live with side effects.
For us older folks, long term QOL is less an issue.
You have a tough choice but you are young so you will bounce back faster than most here.
Get another opinion at a top CCC if you can.
Good luck