Statistically, people who receive chemo, radiation, etc. have fewer recurrences than people who don't. But of course, many people have a recurrence despite having chemo etc., myself included. Having chemo and vaginal brachytherapy after my hysterectomy was still the right thing to do. With the benefit of hindsight, I should have had external beam radiation too, but not doing it was also reasonable. And there's no way to know whether that would have changed the outcome.

I'm curious what you think should have been better about your treatment. From my perspective, you appear to have received the best that modern medicine has to offer plus more, since you're on a clinical trial that might help while probably having minimal side effects.