Yes, that's all familiar. I would see the main goal as having her be responsible for it. She should set whatever boundaries it takes for her to be comfortable and those boundaries should be respected. You want to avoid the situation where you are going out of your way to avoid her ever being upset because that will reinforce her anxiety. At the same time I would also avoid pushing her to get over it. I see it as a really healthy thing if she wants to avoid stuff that is making her uncomfortable. Sensitivity is not a bad thing the key is that she's the one managing it, not you. We are not all the same people. Even as an adult I avoid a lot of scary movies - I'm not interested in violence, thrillers or horror.
As far as fiction, I would encourage you to research a bit. There is plenty of safe, challenging fiction. A lot of older fiction tends to be a lot safer and tamer. I'm sure many here could help with some specific recommendations.
