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]
(..) But you are not the only person who is smarter than everyone else in this room. No offense. And I am clearly not the only person who is tormented by insecurity... ...and has an ego in need of constant validation. - So you admit you're an egotist. - Yes. My name is Dr. Leonard Hofstadter. (..)2008 TvShow: The Big Bang Theory Title: The Cooper-Hofstadter Polarization Season: 1 Episode 9