I use floss, too. :( .every morning and night. I still don’t know the reason for it. A dentist told me it was just a genetic thing and I should be way more careful than others. Another dentist told me it could probably be anemia. But I’ve read that bulimia causes cavities (I used to be bulimic for a long period)

Showering with the lights off. And having my teeth fallen. I suffer from cavities, I don’t even know why I have so many, I brush my teeth twice to thrice a day. :( so I’m seriously scared of ending toothless at some point.