deb, stop worrying because it won't help, or change a thing. The good news is that cervical cancer is highly treatable when caught before it gets into the bowel. Not that I wish cancer on anyone, but that tends to be the best place to have it, if you're going to get it. The uterus tends to encapsulate it, so when the uterus is removed, all the cancer is removed too. While there are exceptions to that, I'm giving the most typical scenario. One of the critical factors is catching it soon enough before it leaves the uterine area. It sounds like you've caught it in time.
Radiation is not the easiest treatment, but it's not usually too bad, and not nearly as bad as some of the other treatments. It would be nice if they could do the Brachiotherapy. Don't worry, you'll get through this. Most people say it made them very tired, even for quite some time after treatment, so don't make plans to paint the town red, or set the world on fire. Do what you can each day, but don't over do it, and don't be frustrated if you can't accomplish the things you want to. BE KIND TO YOURSELF. Give yourself permission to relax, take extra naps, do nothing when you don't want to, laze around. That was one of the hard things for me. I had to remember it was ok to do absolutely nothing for a couple days after my chemo, and even expect someone to do things for me.
One of the most important tips I can give you is to keep an actual list of positive thoughts, and happy memories to go to when you get to feeling down. Force yourself to think about those things on your list when your feeling down. When you're down, your mind will not want to switch gears into positive mode so easily, which is why having an actual list handy is needed at first. A positive attitude is much more conducive to healing, and overall well being. Work your mind, don't let your mind work you.
Don't be afraid to reach out, and talk about it, if you feel the need. We're here to listen, and cheer you on.