I reckon the first few shows would be absolutely awful.
But given a few weeks away from LA and the glare of mass Papparazzi (obv some would still follow but not the great extent that currently follows her) and away from the most negative influences in her life, and given she'd be doing it over and over each night, I reckon she could pull it off. Perhaps she should do some free publicity shows in smaller venues to practice, then go full scale round the world. WITH Her family to support her.