Given the task definition and input, reply with output. You are given a sentence in Galician. Your job is to translate the Galician sentence into English.

A historia obsesionabame porque eu cria que a entendia, pero cando volvin a ela dinme conta de que non a entendia para nada.
And the reason the story obsessed me is that I thought I understood it, and then I went back over it and I realized that I didn't understand it at all.