Previous kidney cancer, now awaiting further results

I had a kidney removed in 2021 due to stage 3 cancer.

operation success!   Early 2024 was diagnosed with Bladder cancer.  Had biopsies removed and tumours removed I had BCG treatment but no success.  2025 and early 2026 more biopsies and tumour removed.  There was a discussion that cancer is going up the Ureta to my only kidney.  I am awaiting the results and outcome.  There has been talk of Stoma but if cancer is in my only kidney then it will be kidney out then dialysis. 
I am not taking this very well.  I am 77 years young.