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]
(..) What's going on? PUMPKIN: Looks like we got a vigilante in our midst. HONEYBUNNY: Shoot him in the face. I hate to shatter your ego, but this ain't the first time... I've had a gun pointed at me. You don't take your hand off that case, it'll be your last. MANAGER: Stop causing problems! (..)1994 Pulp Fiction