wonder what percentage of people with my diagnosis get to keep their bladder?

There are just so many uncertainties, and, as Alan has said, we are all individuals and all different. A lot of the statistics that you read do not apply to you.

Here is a thread that contains a video that may answer a few of your questions

bladdercancersupport.org/forum/8-non-invasive-superficial-bladder-cancer-questions-and-comments/47229-carcinoma-in-situ-dignosis.html#60107

Other than that, you are just going to need to relax and get on with the treatment.

Sara Anne

I don't recall what the %'s were on the studies I have read but, TA and T1 and high grade the majority still statistically will be able to retain their bladders. I never have tried to memorize actual numbers because everyone is different. The majority of us that have or had bladder cancer will pass away from something else. Like most cancers, early detection is the key.