He's on a self-indulgent 'ego trip' with his latest movie, which he wrote, directed, and starred in himself.
Winning was good for our 'egos'. = Winning boosted our 'egos'. [=winning made us proud of ourselves]
a bruised 'ego' [=a feeling that you are not as important as you thought you were]
(..) You're a voice in mine! - Why can't I get rid of you? - You need me. No. I don't. I really don't any more. You created me. I didn't create some loser alter ego to make me feel better. - Take some responsibility. - I do. I am responsible for all of it and I accept that. So, please, I'm begging you, (..)1999 Fight Club