Unfortunately, the freeze response (like fight or flight) has no rational moment. It's all mediated by the reptilian cortex of the brain and when that's triggered all higher functioning (such as rational thought and deliberated action) ceases. We are animals, after all. The more danger you've been confronted with, the more these automatic responses are triggered and the less likely rationality can be brought into the picture. The "work" you are talking about (getting rational about trauma) can take a lifetime to chip away at.