Would it have been a better out come for Gatsby if he was honest with himself about his past and who Daisy was?

This question calls for your opinion. There is no right or wrong answer. In my opinion, yes, if Gatsby had looked at his relationship with Daisy from a different perspective, there would have been a different outcome. None-the-less, you have to remember, he believed he was being honest with himself...... he believed in the dream, and he believed he was going to live happily ever after.