Miller’s debut album, 2015’s Not an Apology, served up assured empowerment anthems that preached self-love. Here, she takes a more personal approach to power pop. With heart-on-sleeve breakup ballads (“Burning Bridges”) and blunt takedowns of internet body shamers (“S.L.U.T.”), she turns the turmoil of adolescence into something relatable and triumphant. The X Factor alum sounds better than ever, too, stretching the limits of her husky soprano (“Song Like You”) and flirting with guitar rock (“Girlfriend”) and dance music (“Buy Me Diamonds”).