I think that one paragaph is too little to provide feedback on, but it seems to me that there are two themes you have put into one paragraph. One is that feeling of reliving a life, which could either be the start of a science fiction/fantasy story, or it could be the tragic tale of the mundane repetition of real life (I've gone to work at the same time for the last 20 years...I have a lot of deja vu about it). The other is breaking every childhood promise you've made, and why you believe they will still come true when they never have. I'm not sure how the two are related. Perhaps that's what the rest of the story is about. But I would be clear, in your own mind, what the connection is.