With so many ''done wrong'' diatribes to her name, it seems Monica can't brush her teeth without being let down by a slippery boyfriend. At the ripe old age of 26, the singer hints at mature contentment on her fourth CD as on the cozy Curtis Mayfield-sampling ''A Dozen Roses (You Remind Me)'' while retaining some angry edge. ''Sideline Ho,'' meanwhile, scores with tough-talking venom. But she falters when between those two states, on middling ballads like ''My Everything.'' Still, The Makings of Me is a solid addition to her quietly consistent career.