Possible Clues:

• Post-makeover self
• Self-description after a lifestyle change
• Transformed self
• 'It's the ___' ('I've changed')
• Self-transformation result, to the self
• Moniker after a lifestyle change
• Improved self
• 'It's a ___' ('I've changed')
• 'A Brand ___' (Dusty Springfield song)
• "It's the ___" ("I've changed")