Complex sentence: Twenty-three years later, Amy (Amy Schumer) is a party girl who drinks too much, smokes weed and sleeps around while dating a gym-addict named Steven (John Cena).
Split into simpler sentences: Twenty-three years later, Amy (Amy Schumer) is a party girl who regularly gets drunk and smokes weed. She sleeps with numerous men even though she is dating a gym-addict named Steven (John Cena).